Dilution Calculator
🧪 Solutions & Molarity. Use the Dilution formula to find concentration 1, volume 1, concentration 2, volume 2: pick the value you want, type the others, and the answer updates as you go.
Pick the ○ next to the value you want to find, fill in the others, and it solves as you type.
What each letter means
| Quantity | Unit |
|---|---|
| Concentration 1 | mol/L |
| Volume 1 | mL |
| Concentration 2 | mol/L |
| Volume 2 | mL |
Worked example
Find the concentration 1 when Volume 1 = 50 mL, Concentration 2 = 0.5 mol/L, Volume 2 = 200 mL.
Using M1 V1 = M2 V2: Concentration 1 = 2 mol/L.
Frequently asked questions
What is the formula for Dilution?
M1 V1 = M2 V2.
What do the letters stand for, and what units are used?
Concentration 1 in mol/L, Volume 1 in mL, Concentration 2 in mol/L, Volume 2 in mL.
How do you calculate concentration 1?
Put the values into M1 V1 = M2 V2. For example, with Volume 1 = 50 mL, Concentration 2 = 0.5 mol/L, Volume 2 = 200 mL, concentration 1 = 2 mol/L.
Can I solve for a different value?
Yes. In the calculator above, pick the circle next to any value (concentration 1, volume 1, concentration 2, volume 2) and fill in the others: it rearranges the formula for you.
