# C1V1 = C2V2

A concentrated solution that is diluted for normal use is called as stock solution. This is an online calculator to find the volume required to dilute the solution and reach the desired concentration and volume using the C1V1 = C2V2 dilution equation. Enter the values of the stock concentration, desired concentration and desired volume into the calculator to gain V1.

## Calculator of Stock Solution

### Example of Stock Solution

If the stock concentration is 22 femtomolar, desired concentration is 12 femtomolar and desired volume is 11 microliter, find the required volume?

#### Solution :

22 × V1 = 12 × 11

V1 = 12 × 11 / 22

V1 = 6

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