💧 Dilution Calculator (C1V1=C2V2)
Calculate dilutions using C1V1 = C2V2
How Dilution Calculation Works
Formula
C1 × V1 = C2 × V2
- 1Select which variable to solve for (C1, V1, C2, or V2).
- 2Enter the three known values.
- 3The calculator uses the dilution equation C1V1 = C2V2.
- 4The unknown is solved: e.g., V2 = (C1 × V1) / C2.
- 5This equation works because the moles of solute remain constant during dilution.
About Dilution Calculator (C1V1=C2V2)
Calculate dilution using C1V1 = C2V2. Enter any three values to find the fourth. Perfect for lab dilutions and solution preparation.
Frequently Asked Questions
When do I use C1V1 = C2V2?
Use this equation whenever you're diluting a solution — adding solvent to decrease concentration. C1 and V1 are the initial concentration and volume; C2 and V2 are the final values.
Does this work with any concentration units?
Yes, as long as C1 and C2 use the same units (molarity, percent, ppm, etc.) and V1 and V2 use the same units (mL, L, etc.). The equation is unit-flexible.
How do I perform a serial dilution?
Apply C1V1 = C2V2 repeatedly. For a 1:10 serial dilution, take 1 mL of solution and add 9 mL of solvent. Each step reduces concentration by 10×.