Solution Dilution Calculator (C1V1=C2V2)
Calculate dilution volumes using the C1V1 = C2V2 equation.
The Solution Dilution Calculator uses the classic dilution equation C1V1 = C2V2 to determine the final volume needed when diluting a concentrated solution.
Enter the initial concentration (C1), initial volume (V1), and desired final concentration (C2). The calculator solves for the final volume (V2) and tells you how much solvent (water) to add.
This equation assumes the amount of solute stays constant during dilution. It is used daily in chemistry labs, pharmacies, and industrial settings for preparing solutions of specific concentrations.
Frequently Asked Questions
What is C1V1 = C2V2?
It is the dilution equation where C1 and V1 are the initial concentration and volume, and C2 and V2 are the final concentration and volume. The total solute remains constant.
Can I use any concentration unit?
Yes, as long as C1 and C2 use the same unit (M, %, mg/mL, etc.) and V1 and V2 use the same volume unit.
How much water do I add?
Subtract V1 from V2. The difference is the volume of solvent to add to your original solution.