Free online calculator & tools to improve your productivity
📐 Circle Area Calculator
Calculate circle area, radius, diameter, and circumference with multiple units. Get instant results with step-by-step solutions and formula explanations
💪 Lean Body Mass Calculator
Calculate your lean body mass using multiple scientific formulas. Track muscle mass and body composition for better fitness goals and health assessment
💰 Overtime Calculator
Calculate overtime pay, regular wages, and total compensation based on hours worked and pay rates. Supports multiple pay periods and overtime multipliers
⚾ Batting Average Calculator
Calculate batting average for baseball and cricket players. Assess batter performance with instant results and skill level ratings for both sports
🏠 Rental Property Calculator
Calculate rental property investment returns including cash flow, ROI, cap rate, and cash-on-cash return. Analyze property profitability and make informed real estate investment decisions
📊 Weighted Average Calculator
Calculate weighted averages for grades, portfolios, surveys and more. Compare with simple averages, view calculation steps, and analyze contribution percentages
🔧 Metal Weight Calculator
Calculate the weight of metal objects based on material type, dimensions, and shape. Supports steel, aluminum, copper and many other materials with multiple shapes
⭕ Circle Calculator
Calculate radius, diameter, circumference, and area of a circle with any known value. Supports multiple units and precision settings for accurate geometry calculations
💰 NPV Calculator
Calculate Net Present Value to evaluate investment profitability. Analyze cash flows, discount rates, and payback periods for informed financial decisions
📐 Square Meter Calculator
Calculate area in square meters for rectangles, circles, triangles and more. Free online calculator with unit conversion and cost estimation
🎂 Age Gap Calculator
Calculate the exact age difference between any two people. Find age gaps in years, months, and days using birth dates, birth years, or current ages
📐 Trigonometry Calculator
Calculate trigonometric functions (sin, cos, tan, cot, sec, csc) for any angle and solve right triangles with interactive visualizations. Supports degrees, radians, and gradians
💰 Yearly Income Calculator
Calculate annual income from hourly wage, weekly hours, and working weeks. Convert between hourly, monthly, and yearly salaries with tax calculations and take-home pay estimates
❤️ Target Heart Rate Calculator
Calculate your target heart rate for effective and safe workouts based on age and fitness level. Find optimal exercise heart rate zones for fat burning, aerobic, and anaerobic training
🏢 Cap Rate Calculator
Calculate capitalization rate for real estate investments. Analyze property value, rental income, and operating expenses to determine investment returns and property performance
📅 Week Calculator
Calculate weeks between dates, add or subtract weeks from any date. Supports ISO 8601 standard, handles leap years automatically, and provides detailed date information
📅 Business Day Calculator
Calculate business days between two dates or find target date by adding working days. Automatically excludes weekends and holidays for accurate business calculations
📊 CTR Calculator
Calculate click-through rate (CTR) for digital marketing campaigns. Analyze ad performance, compare industry benchmarks, and optimize your advertising effectiveness
🏠 Roofing Calculator
Calculate roof area, material requirements and costs for your roofing project. Supports all roof types, materials, and includes labor cost estimates with waste factor calculations
💰 Present Value Calculator
Calculate present value of future cash flows and annuities. Analyze investment returns, loan payments, and financial planning with compound interest calculations
🔥 BTU Calculator
Calculate heating and cooling BTU requirements for your room or house. Determine the right BTU size for air conditioners, heaters, and HVAC systems with insulation and occupancy factors
🧱 Brick Calculator
Calculate number of bricks needed for construction projects. Includes mortar calculations, cost estimation, wastage allowance, and support for different brick types and wall configurations
⚓ Navy Body Fat Calculator
Calculate body fat percentage using US Navy method with circumference measurements. Includes body fat categories, Navy fitness standards, and health recommendations
🚶 Calories Burned Walking Calculator
Calculate calories burned while walking based on weight, speed, time, and incline. Includes MET values, weight loss estimates, and personalized walking recommendations
🔢 Inverse Matrix Calculator
Calculate matrix inverse with step-by-step solutions using Gauss-Jordan elimination. Supports 2×2 to 5×5 matrices with determinant calculation and verification
⚙️ Gear Ratio Calculator
Calculate gear ratios for automotive, mechanical, and engineering applications. Support teeth count, diameter, and speed calculations with efficiency analysis
🔢 Sum Calculator
Calculate the sum of multiple numbers instantly. Support various separators, negative numbers, decimals, and large datasets up to 10,000 numbers with statistical analysis
📊 Engagement Rate Calculator
Calculate social media engagement rate for Instagram, Facebook, TikTok. Analyze your content performance and improve your social media strategy with detailed insights
📅 Months Calculator
Calculate the exact number of months between two dates, find future dates, and track monthly anniversaries with precision. Handles leap years automatically
🏠 House Affordability Calculator
Calculate how much house you can afford based on income, debts, and down payment. Uses 28/36 rule and DTI ratio analysis for accurate home buying guidance
💰 Break Even ROAS Calculator
Calculate your break-even Return on Ad Spend for Facebook, Google, TikTok ads. Optimize advertising campaigns and maximize profitability for e-commerce and dropshipping
🏗️ Gravel Calculator
Calculate gravel volume, weight, and cost for construction and landscaping projects. Supports multiple units, gravel types, and provides accurate material estimates
🔢 Hex Calculator
Hexadecimal calculator and converter for arithmetic operations and number base conversions. Convert between hex, decimal, binary, and octal instantly
🔢 Binary Calculator
Perform binary arithmetic operations, bitwise calculations, and convert between binary and decimal numbers. Perfect for programmers and computer science students
🔢 Combination Calculator
Calculate nCr combinations - the number of ways to choose r items from n objects where order doesn't matter. Perfect for lottery, team selection, and probability calculations
√ Square Root Calculator
Calculate square roots, cube roots, and nth roots with step-by-step solutions. Includes simplified radical form, perfect square detection, and calculation history
📊 Median Calculator
Calculate the median value of any dataset quickly and accurately. Support multiple input formats, show sorted data, and provide step-by-step calculation details
📊 IELTS Score Calculator
Calculate your IELTS band scores from correct answers and predict overall score. Convert listening and reading answers to band scores with official conversion tables
💰 Business Loan Calculator
Calculate monthly payments, total interest, and APR for your business loan. Supports SBA loans, term loans, and equipment financing with detailed amortization schedule
🎓 Education Loan Calculator
Calculate EMI for education loans with grace period and processing fee options. Get detailed amortization schedule, interest breakdown, and total payment analysis for student loans
🔵 Cylinder Volume Calculator
Calculate the volume of standard, hollow, and oblique cylinders with precision. Supports multiple units and provides detailed calculation steps with formulas
🚗 Leasing Calculator
Calculate your monthly car lease payment with accurate estimates for lease costs, interest, and total payments. Input vehicle price, down payment, and lease terms
⚡ Ohm's Law Calculator
Calculate voltage, current, resistance, and power using Ohm's Law formulas. Enter any two values to find the missing electrical parameters with step-by-step calculations
⚡ Voltage Divider Calculator
Calculate voltage divider circuit parameters including output voltage, resistor values, current, and power consumption. Enter any 3 known values to find the 4th
🔧 Resistor Calculator
Calculate resistor values using color codes for 4, 5, and 6 band resistors. Includes series/parallel combinations, power dissipation, and voltage divider calculations
💳 Credit Card Payoff Calculator
Calculate how long it will take to pay off your credit card debt. Compare debt avalanche vs snowball strategies and see interest savings
🎲 Probability Calculator
Calculate probability for single events, two events, conditional probability, and normal distribution. Interactive tool with step-by-step explanations and examples
📊 Sample Size Calculator
Calculate required sample size for surveys and research studies. Set confidence level, margin of error, and population parameters for statistical precision
📐 Right Triangle Calculator
Calculate missing sides, angles, area, and perimeter of right triangles. Uses Pythagorean theorem and trigonometry with step-by-step solutions
💰 Profit Calculator
Calculate profit margin, profit amount, and optimal pricing for your business. Multiple calculation modes with real-time results and industry examples
🧪 Molarity Calculator
Calculate molarity and molar concentration of chemical solutions. Supports mass concentration mode and mass+volume mode with multiple units
📐 Slope Calculator
Calculate slope between two points, line equations, intercepts, and angle. Shows step-by-step work with graph visualization
📏 Board Foot Calculator
Calculate board feet for lumber projects. Determine wood volume, quantity, and total cost for your woodworking and construction needs
📐 Circumference Calculator
Calculate circle circumference, radius, diameter, and area with step-by-step solutions. Supports multiple units and high precision π values
📐 Cubic Yard Calculator
Calculate cubic yards for construction and landscaping materials. Support for multiple shapes, unit conversions, and material cost estimation
⚾ ERA Calculator
Calculate baseball pitcher's Earned Run Average (ERA) with instant results and performance analysis. Support for partial innings and custom game formats
🔄 Conversion Calculator
Convert between different units of measurement including length, weight, temperature, area, volume, time, speed, energy, pressure and data storage
🚗 Auto Finance Calculator
Calculate car loan payments, total interest, and amortization schedules. Compare different loan terms, down payments, and trade-in values for optimal financing
💰 Compound Interest Calculator
Calculate how your savings and investments grow with compound interest. Features regular contributions, different compounding frequencies, and detailed projections
💰 XIRR Calculator
Calculate Extended Internal Rate of Return for irregular cash flows. Perfect for SIP investments, mutual funds, and portfolio analysis with precise timing
💰 IRR Calculator
Calculate Internal Rate of Return for investment projects. Analyze cash flows, NPV, and investment profitability with detailed evaluation and visualization
💰 IRA Calculator
Calculate and compare Traditional IRA, Roth IRA, SEP IRA, and SIMPLE IRA returns. Plan your retirement with accurate tax analysis and contribution limits
💰 Debt Payoff Calculator
Calculate debt payoff time and compare snowball vs avalanche strategies. Plan your path to debt freedom with detailed payment schedules and interest savings analysis
📱 PPI Calculator
Calculate pixels per inch (PPI) for screens and displays. Determine pixel density, dot pitch, and display quality with support for diagonal or width/height measurements
❤️ Heart Rate Zone Calculator
Calculate your heart rate training zones with personalized recommendations. Get maximum heart rate, target zones, and training guidance based on age and fitness goals
❤️ Max Heart Rate Calculator
Calculate your maximum heart rate and target training zones using proven formulas. Get personalized heart rate zones for optimal workout intensity and cardiovascular training
🧪 Dilution Calculator
Calculate solution dilutions for laboratory experiments using C1V1=C2V2 formula. Supports molarity, percent, and mass concentration units with dilution ratio calculations
🎓 MCAT Score Calculator
Convert MCAT practice test raw scores to scaled scores with percentile rankings. Get medical school competitiveness analysis and detailed score breakdown
💰 Salary to Hourly Calculator
Convert salary from any pay period to hourly wage. Calculate annual, monthly, weekly, bi-weekly, and daily equivalents with customizable work hours and weeks per year
⛳ Golf Handicap Calculator
Calculate your golf handicap index and course handicap for 9 and 18-hole rounds. Get accurate handicap calculations with course rating and slope adjustments
🚗 Lease Calculator
Calculate monthly car lease payments and total lease costs. Compare different lease terms, down payments, and residual values to find the best deal for your budget
🩺 BSA Calculator
Calculate Body Surface Area using multiple medical formulas (Du Bois, Mosteller, Gehan & George, Haycock). Essential for drug dosing, medical assessments, and clinical calculations
🏠 Rent vs Buy Calculator
Compare the costs of renting versus buying a home to make informed housing decisions. Calculate break-even point, opportunity costs, and long-term financial impact
📅 Age Difference Calculator
Calculate the exact age difference between two people using birth dates, birth years, or current ages. Get precise results in years, months, and days with automatic age sorting
🏃 Speed Calculator
Calculate speed, distance, or time using fundamental motion formulas. Convert between different units (mph, km/h, m/s) with step-by-step solutions and detailed explanations
🌡️ Heat Index Calculator
Calculate heat index (apparent temperature) based on air temperature and humidity. Assess heat stress risk levels and get safety recommendations for hot weather conditions
💰 ROAS Calculator
Calculate Return on Ad Spend (ROAS) for your advertising campaigns. Analyze ad performance, profit margins, and get actionable insights to optimize your marketing ROI
🌍 Time Zone Calculator
Convert time between different time zones worldwide. Perfect for scheduling meetings, planning travel, and international business coordination
🚶 Walking Calorie Calculator
Calculate calories burned while walking based on weight, pace, distance, and terrain. Accurate METs-based calculations with advanced options for slope and backpack weight
👟 Steps to Calories Calculator
Calculate calories burned from walking steps based on weight, height, steps count, and walking speed. Get distance, time, stride length, and health recommendations
🏠 Home Affordability Calculator
Calculate how much house you can afford based on income, debts, down payment, and loan type. Get maximum home price and monthly payment estimates with DTI analysis
🏠 FHA Loan Calculator
Calculate your FHA loan monthly payment including principal, interest, MIP, taxes and insurance. Low down payment options starting at 3.5% with detailed breakdown
📊 Download Speed Calculator
Calculate file download time, required bandwidth, or maximum file size. Support all file sizes and connection speeds with network efficiency adjustment
💰 Bond Calculator
Calculate bond price, yield to maturity, current yield and analyze bond investment returns. Support multiple payment frequencies and bond status analysis
📊 Log Calculator
Calculate logarithms and antilogarithms with any base including natural log (ln), common log (log10), and binary log (log2). Step-by-step solutions included
🏗️ Stair Calculator
Calculate stair rise, run, angle, and stringer length for construction projects. Building code compliant with imperial and metric units support
📐 Pythagorean Theorem Calculator
Calculate missing sides and area of right triangles using the Pythagorean theorem. Free online tool with step-by-step solutions and multiple calculation modes
💳 Credit Card Interest Calculator
Calculate monthly interest charges, payoff time, and total interest paid on credit card debt. Compare payment strategies to save money and pay off faster
💰 Refinance Calculator
Calculate potential savings from mortgage refinancing. Compare monthly payments, break-even point, and total interest costs to make informed refinancing decisions
💰 Loan Amortization Calculator
Calculate monthly loan payments and view detailed amortization schedules. Perfect for mortgages, auto loans, and personal loans with extra payment analysis
📐 Hypotenuse Calculator
Calculate triangle hypotenuse, sides, and angles using Pythagorean theorem. Support multiple input modes with step-by-step solutions and triangle visualization
🔢 LCM Calculator
Calculate the Least Common Multiple (LCM) of 2-15 numbers instantly with step-by-step solutions and multiple calculation methods including prime factorization
🚗 Car Calculator
Calculate your car loan payment and total costs with our comprehensive auto loan calculator. Estimate monthly payments, total interest, and loan costs for new and used cars
🌡️ Dew Point Calculator
Calculate dew point temperature from air temperature and relative humidity. Includes comfort level assessment, unit conversion, and detailed atmospheric analysis
📐 Area Calculator
Calculate the area of various geometric shapes including rectangle, square, circle, triangle, ellipse, trapezoid and more. Instant results with formulas and unit conversion
📦 Cubic Feet Calculator
Calculate volume in cubic feet with multiple unit support. Convert between feet, inches, yards, meters, and centimeters with instant results and detailed calculations
📐 Volume Calculator
Calculate the volume of various geometric shapes including cubes, spheres, cylinders, cones, and more. Easy-to-use tool with unit conversion and step-by-step calculations
🔥 Calorie Burn Calculator
Calculate calories burned during various physical activities based on your weight, activity type, and duration. Uses accurate MET values for precise calorie estimates
⏱️ Treadmill Calorie Calculator
Calculate calories burned on treadmill with accurate METs-based calculations. Supports walking, running, incline settings, and different treadmill types for precise calorie estimates
🫁 VO2 Max Calculator
Calculate your VO2 Max using four different fitness tests. Assess your cardiovascular fitness level and get personalized training recommendations for improved aerobic capacity
💰 Budget Calculator
Plan your monthly budget, track expenses, and achieve your financial goals with our comprehensive budget calculator. Get financial health analysis and personalized recommendations
📊 Standard Deviation Calculator
Calculate population and sample standard deviation, variance, mean, and other statistical measures. Shows step-by-step calculations with multiple input formats
💰 Annuity Calculator
Calculate future value of annuity investments with compound interest. Plan retirement savings with regular deposits and see investment growth over time
📐 Quadratic Formula Calculator
Solve quadratic equations of the form ax² + bx + c = 0 using the quadratic formula. Get step-by-step solutions with real and complex roots analysis
🔥 Coast FIRE Calculator
Calculate when you can stop saving for retirement and coast to financial independence. Determine your Coast FIRE number and plan your path to early retirement
⚡ Voltage Drop Calculator
Calculate electrical voltage drop for wire circuits. Supports AC/DC, copper/aluminum conductors, AWG sizes. Free tool for electricians and engineers
💰 RMD Calculator
Calculate your Required Minimum Distribution for 2025 from IRA and 401(k) accounts. Avoid IRS penalties with accurate RMD calculations based on official tables
📐 Square Feet Calculator
Calculate area in square feet for rectangles, circles, triangles, and trapezoids. Multiple unit support with cost estimation and detailed calculation breakdown
📐 Square Footage Calculator
Calculate area and square footage for rectangles, circles, triangles, and L-shaped areas. Support multiple units, cost estimation, and material planning
⏱️ Playback Speed Calculator
Calculate video and audio duration at different playback speeds. Perfect for podcasts, lectures, and videos with time savings analysis
📉 Percentage Decrease Calculator
Calculate percentage decrease between two values for price discounts, salary cuts, weight loss, and other reduction scenarios with detailed analysis
💰 Percent Off Calculator
Calculate discount amount and final price with percentage off. Perfect for shopping, sales, and budgeting with instant results and detailed breakdown
⏰ Timecard Calculator
Calculate work hours, overtime, and wages with our free timecard calculator. Track employee time with printable timesheets and automatic payroll calculations
💰 Simple Interest Calculator
Calculate simple interest, principal, rate, or time using the formula I = P × r × t. Perfect for loans, investments, and financial planning with step-by-step calculations
🔢 Matrix Calculator
Perform matrix operations including addition, subtraction, multiplication, determinant, inverse, and transpose calculations with step-by-step solutions
💰 Student Loan Calculator
Calculate monthly student loan payments, total interest, and payoff time. Compare repayment options and see how extra payments can save money and time
💰 Pension Calculator
Calculate your pension benefits and retirement income with our comprehensive calculator. Estimate monthly payments, compare retirement options, and plan your financial future
🚗 Mileage Calculator
Calculate travel distance, fuel efficiency, and gas costs for your trips. Plan your journey with accurate mileage estimates and fuel cost analysis
📐 Triangle Calculator
Calculate triangle sides, angles, area, and perimeter. Support SSS, SAS, ASA, AAS, SSA methods with step-by-step solutions for geometry problems
🌐 IP Calculator
Calculate IP subnets, CIDR blocks, network addresses, and subnet masks for IPv4 and IPv6 networks. Perfect for network administrators and IT professionals
⚖️ Ideal Weight Calculator
Calculate your ideal body weight using multiple scientific formulas. Get personalized weight ranges based on height, gender, and body frame size with BMI analysis
💃 Body Type Calculator
Calculate your body shape and type with our scientific body type calculator. Get personalized health insights and style recommendations based on your measurements
💰 APR Calculator
Calculate the true cost of any loan with APR including all fees. Compare interest rates and find the best loan deal with accurate annual percentage rate calculation
💰 Future Value Calculator
Calculate the future value of your investments with compound interest. Free online tool for financial planning and investment analysis
💰 Sales Tax Calculator
Calculate sales tax amount, total price after tax, and tax-inclusive pricing. Supports all US states with real-time calculation and detailed breakdown
💰 ROI Calculator
Calculate your return on investment (ROI) percentage and analyze investment performance. Get instant results for ROI, annualized returns, and net profit calculations
💰 Gratuity Calculator
Calculate your gratuity amount based on Indian Gratuity Act 1972. Get instant results for retirement planning with detailed calculation breakdown and tax information
⛽ Fuel Cost Calculator
Calculate fuel costs for your trip based on distance, efficiency, and gas prices. Support multiple units and get instant cost estimates for better travel planning
💰 CD Calculator
Calculate your certificate of deposit earnings with our free CD calculator. Enter deposit amount, APY, and term to see your potential returns and maturity date
💰 Savings Calculator
Plan your financial future with compound interest. Calculate how your savings will grow over time with regular contributions and detailed projections
💰 CPM Calculator
Calculate Cost Per Mille for your advertising campaigns. Enter any two values (cost, impressions, CPM rate) to calculate the third with instant results and detailed explanations
💰 APY Calculator
Calculate your investment's Annual Percentage Yield (APY) with compound interest. Compare different compounding frequencies and see how your money grows over time
💃 Body Shape Calculator
Discover your body shape and get personalized fashion advice based on your measurements. Find out if you're an hourglass, pear, apple, or rectangle body type
🚗 Tire Size Calculator
Calculate tire dimensions, compare different tire sizes, and get safety recommendations. Support metric and imperial units with visual comparison
📈 CAGR Calculator
Calculate Compound Annual Growth Rate for investments and business growth analysis. Get accurate CAGR percentage with detailed calculation steps
🩸 Period Calculator
Track your menstrual cycle and predict your next period date. Calculate ovulation, fertile window, and cycle patterns with calendar view
📊 Ratio Calculator
Simplify ratios, solve proportions, and find equivalent ratios with step-by-step solutions. Perfect for math, cooking, and business calculations
📊 Average Calculator
Calculate arithmetic mean and weighted average with support for up to 50 numbers. Get instant results with step-by-step calculations and detailed explanations
💰 VAT Calculator
Calculate VAT (Value Added Tax) by adding or removing tax from any amount. Support different tax rates with real-time calculation and detailed breakdown
🌐 Subnet Calculator
Calculate IP subnets, network addresses, host ranges, and CIDR notation for IPv4 and IPv6 networks. Perfect for network administrators and IT professionals
🥩 Protein Calculator
Calculate your daily protein intake requirements based on your goals, activity level, and body composition. Get personalized nutrition recommendations
💰 401k Calculator
Calculate your 401k retirement savings growth with employer matching. Plan your retirement with accurate projections and annual breakdowns
💪 One Rep Max Calculator
Calculate your maximum lifting capacity for any exercise using proven formulas. Get training percentages and personalized strength recommendations
🍺 BAC Calculator
Calculate your Blood Alcohol Content (BAC) based on drinks consumed, body weight, gender, and time elapsed. Get instant estimates and safety recommendations
🏃 Pace Calculator
Calculate running pace, time, distance and speed for training and races. Support multiple units, pace analysis, and performance recommendations
🧮 Fraction Calculator
Add, subtract, multiply, and divide fractions with step-by-step solutions. Support for mixed numbers, improper fractions, and automatic simplification
🏗️ Concrete Calculator
Calculate concrete volume, weight, cost and bags needed for slabs, footings, walls, columns and steps. Supports metric and imperial units with waste factor calculation
📏 Height Calculator
Predict your child's adult height using scientific methods like Khamis-Roche and mid-parental height calculations. Get accurate growth predictions with error margins
💪 1RM Calculator
Calculate your one-rep max (1RM) for bench press, squat, deadlift and more. Get training percentages, rep max table, and workout recommendations with multiple formulas
🤱 Pregnancy Calculator
Calculate your due date and track pregnancy milestones using multiple methods: LMP, conception date, IVF transfer, or ultrasound. Get detailed pregnancy timeline and important dates
💪 Macro Calculator
Calculate your daily macronutrient needs (protein, carbs, fat) based on your fitness goals. Get personalized nutrition plan for weight loss, maintenance, or muscle gain
💰 Lumpsum Calculator
Calculate returns on your one-time investment with compound interest. Plan your financial goals and estimate investment growth for wealth building
💪 FFMI Calculator
Calculate your Fat-Free Mass Index (FFMI) - a more accurate body composition measure than BMI for athletes and fitness enthusiasts. Get health classification and natural potential assessment
💰 Roth IRA Calculator
Calculate your Roth IRA retirement savings and tax-free growth potential. Compare with taxable accounts, check contribution eligibility, and plan your retirement
👙 Bra Size Calculator
Find your perfect bra size with accurate measurements for US, UK, EU standards. Includes sister sizes, fitting guide, and international sizing conversion
💰 Amortization Calculator
Calculate loan payments and amortization schedules with detailed payment breakdowns. See how extra payments can save you money and time
🤱 Ovulation Calculator
Predict your fertile window and ovulation date to maximize conception chances. Plan pregnancy with accurate menstrual cycle tracking and calendar view
💉 Peptide Calculator
Calculate peptide dosages, reconstitution volumes, and syringe units for accurate peptide administration. Supports body weight-based dosing and cycle planning
💰 FD Calculator
Calculate your Fixed Deposit maturity amount and interest earnings with compound and simple interest options. Support for various tenure and customer types
💰 Tip Calculator
Calculate the perfect tip amount for restaurants, bars, and services. Split bills easily among friends with instant results and tax options
💪 Body Fat Calculator
Calculate your body fat percentage using proven methods like US Navy and Covert Bailey. Get accurate health assessments with multiple calculation options
📊 GPA Calculator
Calculate your Grade Point Average with support for weighted grades, semester planning, and multiple grading systems. Perfect for students and academic planning
🔥 BMR Calculator
Calculate your Basal Metabolic Rate (BMR) - the minimum calories your body needs at rest. Supports multiple formulas and TDEE estimation for weight management
💤 Sleep Calculator
Calculate optimal bedtime and wake-up times based on sleep cycles. Wake up refreshed by timing your sleep to complete 90-minute cycles
📊 Grade Calculator
Calculate weighted average grades and determine final exam scores needed to achieve target grades. Supports percentage, letter grades, and GPA formats
💰 Salary Calculator
Convert between hourly, daily, weekly, monthly and annual pay rates. Calculate adjusted salary with holidays and vacation days
🧮 Scientific Calculator
Advanced online calculator with trigonometric, logarithmic, exponential functions. Perfect for students, engineers, and scientists
📊 Percentage Calculator
Calculate percentages, percentage changes, and solve percentage problems easily. Multiple calculation modes with instant results and detailed explanations
💰 EMI Calculator
Calculate your loan EMI (Equated Monthly Installment) instantly. Perfect for home loans, car loans, and personal loans with detailed amortization schedule
🔥 TDEE Calculator
Calculate your Total Daily Energy Expenditure (TDEE) to estimate daily calorie burn. Get BMR, activity level assessment, and weight goal recommendations
💰 SWP Calculator
Calculate your Systematic Withdrawal Plan returns and plan regular income from mutual fund investments for retirement and financial goals
💰 SIP Calculator
Calculate your SIP returns with systematic investment plan calculator. Plan your mutual fund investments with compound interest projections
🎲 Dice Calculator
Calculate dice probabilities and roll virtual dice online. Support D4, D6, D8, D10, D12, D20 dice with probability analysis and statistics
🤱 EDD Calculator
Calculate your estimated due date (EDD) using last menstrual period, conception date, IVF transfer date, or ultrasound. Free pregnancy due date calculator
🧮 TI-84 Calculator
Free online TI-84 graphing calculator simulator. Plot functions, solve equations, and perform scientific calculations with full TI-84 Plus functionality
🏠 Rent Calculator
Calculate how much rent you can afford based on your income using the 30% rule. Get debt-to-income ratio and financial health assessment
💰 Repayment Calculator
Calculate monthly payments, total interest, and repayment terms for mortgages, auto loans, student loans, and personal loans
💰 Loan Calculator
Calculate monthly payments, total interest, and amortization schedules for mortgages, auto loans, personal loans, and more
📏 Distance Calculator
Calculate distance between coordinates or latitude/longitude points. Support 2D, 3D coordinates and multiple units (km, miles, meters, feet)
💰 Financial Calculator
Calculate present value, future value, interest rate, payments, and periods with comprehensive Time Value of Money (TVM) calculator. Perfect for investment analysis
🔥 Fire Calculator
Calculate your path to Financial Independence and Retire Early (FIRE). Determine your FIRE number, retirement age, and savings strategy using the 4% rule
📊 Lot Size Calculator
Calculate optimal position size for forex trading. Manage risk with account balance, risk percentage, and stop loss inputs for better trading decisions
💰 Finance Calculator
Calculate present value, future value, interest rate, periods, and payments using Time Value of Money (TVM) principles. Perfect for financial planning
💰 Dividend Calculator
Calculate dividend income, DRIP returns, and long-term portfolio growth. Support multiple payment frequencies and reinvestment strategies
💰 Margin Calculator
Calculate profit margin, markup, cost and revenue from any two values. Free margin calculator for business profitability analysis
⏱️ Hours Calculator
Calculate work hours between start and end times. Subtract breaks, handle overnight shifts, show hh:mm and decimal hours with overtime tracking
💰 Retirement Calculator
Plan your financial future with comprehensive retirement planning. Calculate savings needs, investment growth, and retirement income projections
⏰ Time Calculator
Add, subtract, and calculate time duration with comprehensive time calculator. Perfect for work hours, project planning, and time management
📅 Calendar Calculator
Add or subtract time from dates, or calculate days between two dates. Supports business days, holidays, and multiple date formats with precision
📈 Stock Average Calculator
Calculate the average price of stocks purchased at different prices. Determine your cost basis for better investment decisions and portfolio management
💰 Interest Rate Calculator
Calculate how much interest your savings can earn over time with compound interest and regular deposits. See detailed projections and growth charts
🌯 Chipotle Nutrition Calculator
Calculate nutrition facts for your custom Chipotle meal. Get detailed calorie, protein, carbs, and fat information for burritos, bowls, tacos, and more
🎓 UCAT Score Calculator
Convert raw UCAT scores to scaled scores for 2025. Calculate total score out of 2700 with SJT band and percentile ranking
💰 Discount Calculator
Calculate discounts and sale prices fast. Supports percentage off, amount off, stacked discounts, and sales tax calculations
🌟 Birth Chart Calculator
Generate your complete natal chart with planetary positions, houses, and aspects. Discover your Big Three and get astrological insights
📅 Days Calculator
Calculate days between dates with options for business days, weekends, and holidays. Include/exclude end date and convert to weeks, months, years
💰 Investment Calculator
Project your investment growth with compound interest and recurring contributions. Calculate future value with customizable parameters
📈 Inflation Calculator
Calculate the purchasing power of US Dollar from 1913 to 2025 using historical CPI data. Convert past amounts to today's equivalent value
💕 Love Calculator
Test love compatibility between two people based on their names. Get instant percentage and fun analysis for entertainment
🎰 Powerball Calculator
Calculate your after-tax Powerball winnings and compare lump sum vs annuity payments with federal and state taxes
🌟 Dasha Calculator
Calculate Vimshottari Dasha periods based on Vedic astrology for planetary periods and astrological insights
🌱 Grow a Garden Calculator
Calculate crop values in Roblox Grow a Garden game with mutations and weight factors
Font Generator
Convert your text to stylish Unicode fonts for Instagram, Twitter, and more
Random Number Generator
Generate advanced random numbers, dice, coins, colors, and more
Password Generator
Generate secure random passwords for your accounts
Calorie Calculator
Free daily calorie intake calculator based on age, gender, height, weight, and activity level. Supports weight loss, maintenance, or muscle gain.
⚖️ Weight Gain Calculator
Calculate daily calories needed for healthy weight gain. Get personalized calorie targets, BMI analysis, timeline estimates, and nutrition recommendations
🔢 Modulo Calculator
Calculate modulo operations with step-by-step solutions. Support positive, negative, and decimal numbers with detailed calculation explanations and programming examples
BMI Calculator
Calculate your Body Mass Index and get health advice
Age Calculator
Calculate your exact age in years, months, weeks, days, minutes, and seconds
Mortgage Calculator
Calculate your monthly mortgage payment, total interest, and view amortization schedule