Dilution Calculator
Calculate dilution using C1×V1 = C2×V2.
Find any missing variable for solution preparation.
Dilution Result
The Dilution Equation relates the concentration and volume of a stock solution to the desired diluted solution:
C1 × V1 = C2 × V2
Where:
- C1 = concentration of stock (starting) solution
- V1 = volume of stock solution needed
- C2 = concentration of diluted (final) solution
- V2 = volume of diluted (final) solution
To find any missing variable:
V1 = (C2 × V2) / C1C2 = (C1 × V1) / V2V2 = (C1 × V1) / C2C1 = (C2 × V2) / V1
Leave one field empty to solve for it.
Units must be consistent: Use the same concentration units (M, mM, %, etc.) and same volume units (mL, L, etc.) on both sides.
Example: Dilute 5M stock to make 500 mL of 0.5M solution:
- V1 = (0.5 × 500) / 5 = 50 mL of stock + 450 mL of solvent