Avogadro's Number Calculator

Enter value and click on calculate. Result will be displayed.

Formula:
N = (Z * M)(D * V)

Number of atoms within the crystal unit cell (Z) :
g/mole
Average atomic mass (M) :
Density (D) :
g/cm3
Volume (V) :
cm3
Result:

What is an Avogadro's Number Calculator?
An Avogadro's Number Calculator is a tool used to work with Avogadro’s constant, 6.022×1023, which represents the number of atoms, molecules, or particles in one mole of a substance. This number is a fundamental constant in chemistry and physics.

The calculator helps convert between:

  • Moles of a substance
  • Number of particles (atoms, molecules, ions)
  • Mass of a substance (when used alongside molar mass)

Why use an Avogadro's Number Calculator?

  • Counting tiny particles: Atoms and molecules are incredibly small, so counting them directly isn’t practical — Avogadro’s number makes this possible.
  • Converting between moles and particles: Chemistry often requires switching between macroscopic measurements (like grams) and microscopic counts (like atoms).
  • Balancing chemical equations: Knowing how many particles react or form in a reaction.
  • Determining molecular quantities: Calculating the amount of substance in chemical reactions and solutions.

How does an Avogadro's Number Calculator work?

  1. Converting moles to particles:
  1. Converting particles to moles:
  1. Working with mass: When combined with the molar mass of a substance:
  1. Combining conversions: To find the number of particles from mass:

When is an Avogadro's Number Calculator used?

  • In chemistry labs: For measuring and preparing chemical solutions.
  • In physics: When studying gases and the behavior of particles.
  • In stoichiometry: Balancing equations and predicting product amounts.
  • In material science: Calculating atomic-scale properties from bulk measurements.
  • In education: Teaching and learning the mole concept and atomic theory.