Avogadro's Law Calculator
💨 Gas Laws & Fluids. Use the Avogadro's law formula to find volume 1, amount 1, volume 2, amount 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 |
|---|---|
| Volume 1 | L |
| Amount 1 | mol |
| Volume 2 | L |
| Amount 2 | mol |
Worked example
Find the volume 1 when Amount 1 = 1 mol, Volume 2 = 44.8 L, Amount 2 = 2 mol.
Using V1/n1 = V2/n2: Volume 1 = 22.4 L.
Frequently asked questions
What is the formula for Avogadro's law?
V1/n1 = V2/n2.
What do the letters stand for, and what units are used?
Volume 1 in L, Amount 1 in mol, Volume 2 in L, Amount 2 in mol.
How do you calculate volume 1?
Put the values into V1/n1 = V2/n2. For example, with Amount 1 = 1 mol, Volume 2 = 44.8 L, Amount 2 = 2 mol, volume 1 = 22.4 L.
Can I solve for a different value?
Yes. In the calculator above, pick the circle next to any value (volume 1, amount 1, volume 2, amount 2) and fill in the others: it rearranges the formula for you.
