Frequently asked questions about percent solution dilution
What formula is used for percent solution dilution?
This calculator uses the standard dilution formula C1V1 = C2V2, where C1 and V1 are the stock concentration and stock volume, while C2 and V2 are the target concentration and final volume.
How do I calculate the stock volume needed for a target solution?
Enter the starting concentration C1, the target concentration C2, and the final volume V2. The calculator then solves for the required stock volume V1 automatically.
How much solvent do I need to add?
After the stock volume is known, the added solvent volume is calculated as V = V2 - V1. This tells you how much water or other solvent must be added to reach the final solution volume.
What is the difference between dilution factor and percent dilution?
The dilution factor describes how many times the original solution is diluted, while the percent dilution expresses the reduction in concentration as a percentage. Both are useful for understanding how much weaker the final solution is compared with the stock solution.
Can I solve for a missing concentration or final volume?
Yes. If one of the four main values in C1V1 = C2V2 is unknown, this calculator can solve for it. You can also switch volume units as needed, as long as the solution volumes are compared consistently.
