Dilution Calculator

Solve C1V1 = C2V2 to find how much stock solution you need.

Quick answer: Dilution Calculator: Solve C1V1 = C2V2 to find how much stock solution you need. Everything runs in your browser, so nothing you enter is uploaded or stored.

How to use Dilution Calculator

  1. Enter your values in the fields.
  2. The results update instantly as you type.
  3. Note or copy the numbers you need.

Features

Formula

C1V1 = C2V2, so V1 = C2 x V2 / C1.

Worked example

To make 500 mL of 1 M from 10 M stock, use 50 mL stock and 450 mL solvent.

Frequently asked questions

What is the dilution equation?

C1 x V1 = C2 x V2.

How much solvent do I add?

Final volume minus the stock volume.

Is the Dilution Calculator free?

Yes. It is free, needs no signup and works on any device.

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