⚙️ Gear Ratio Calculator
Calculate gear ratios, output speed, and torque for mechanical systems
95%
Results
Gear Ratio
3.00
3:1
Speed Ratio
0.33
Output/Input
Torque Ratio
2.85
With efficiency
Transmission Type
Reduction
Speed ↓ Torque ↑
Output Speed
333 RPM
Output Torque
285% of input
Formula: Gear Ratio = Output Teeth / Input Teeth
Calculation: 60 / 20 = 3.00
Speed Ratio: 1 / Gear Ratio = 1 / 3.00 = 0.33
Torque Ratio: Gear Ratio × Efficiency = 3.00 × 0.95 = 2.85
20
Input
⚙️
60
Output
Frequently Asked Questions
⚠️ Disclaimer
This calculator is for educational and reference purposes only. For actual engineering applications, please consult with professional engineers and consider additional factors such as material strength, lubrication conditions, working environment, and safety factors. The accuracy of calculations does not constitute any engineering design or safety guarantee.