🧪 Dilution Calculator
Calculate solution dilutions for laboratory experiments using scientific formulas
Input Parameters
Quick Concentrations:
Quick Volumes:
Results
Enter at least 3 parameters to calculate the 4th
Formula: C1 × V1 = C2 × V2
Frequently Asked Questions
This is the dilution equation where C1 is the initial concentration, V1 is the initial volume, C2 is the final concentration, and V2 is the final volume. It's based on the principle that the amount of solute remains constant during dilution.
Use the formula V1 = (C2 × V2) / C1. Enter your desired final concentration (C2), final volume (V2), and stock concentration (C1) to calculate the required volume of stock solution (V1).
Dilution ratio (e.g., 1:5) shows the proportion of solute to solvent. Dilution factor is the total volume divided by the volume of stock solution used, indicating how many times the solution has been diluted.
This calculator is designed for single-step dilutions. For serial dilutions, you'll need to perform multiple calculations, using the result of each step as the starting concentration for the next.
The calculator supports molarity (M, mM, μM, nM), percentage concentrations (%, w/v, v/v, w/w), and mass concentrations (mg/mL, μg/mL, ng/mL).
The calculator maintains 4 significant figures in calculations and uses standard mathematical precision. However, always verify critical calculations independently for laboratory work.
Yes, the calculator will show both the volume of stock solution needed and the volume of solvent to add to reach your desired final volume.
Check that your initial concentration is higher than your final concentration (for dilutions), all values are positive numbers, and your final volume is larger than your initial volume.
⚠️ Disclaimer
This calculator is provided for educational and reference purposes only. Always follow proper laboratory safety protocols and verify calculations independently for critical experiments. We are not responsible for any damages or losses resulting from the use of this tool.