Number of Particles Calculator
⚗ Moles & Stoichiometry. Use the Number of particles (Avogadro) formula to find number of particles, amount: pick the value you want, type the others, and the answer updates as you go.
Number of particles3.011 × 10²³
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 |
|---|---|
| Number of particles | no unit |
| Amount | mol |
Worked example
Find the number of particles when Amount = 0.5 mol.
Using N = n × NA: Number of particles = 3.011 × 10²³.
Frequently asked questions
What is the formula for Number of particles (Avogadro)?
N = n × NA.
What do the letters stand for, and what units are used?
Number of particles, Amount in mol.
How do you calculate number of particles?
Put the values into N = n × NA. For example, with Amount = 0.5 mol, number of particles = 3.011 × 10²³.
Can I solve for a different value?
Yes. In the calculator above, pick the circle next to any value (number of particles, amount) and fill in the others: it rearranges the formula for you.
