Molarity Calculator

Calculate molarity, moles, or volume from the concentration formula C = n/V

C = n / V → 4 mol/L = 2 mol / 0.5 L

Concentration (C)

4mol/L

Moles (n)

2mol

Volume (V)

0.5L

About this calculator

Molarity Calculator solves C = n/V for concentration, moles, or volume. Enter any two of the three values to instantly find the third. Ideal for chemistry, lab work, and solution preparation — supports mol/L (Molarity M), moles, and liters.

Common examples

n = 2 mol, V = 0.5 L → C = 4 M
C = 1 M, V = 2 L → n = 2 mol
C = 0.5 M, n = 1 mol → V = 2 L
n = 0.1 mol, V = 0.25 L → C = 0.4 M
C = 2 M, V = 0.75 L → n = 1.5 mol