Molarity Calculator — M = n/V

Molarity — moles of solute per liter of solution — is the concentration unit behind nearly every solution calculation. Enter any two of moles, volume, and molarity to find the third.

Molarity Calculator — M = n/V

$M = \frac{n}{V}$

Solve for

Moles of solute (n)

Unit

Solution volume (V)

Unit

Result unit

How to interpret the result

Worked check: 0.500 mol of NaCl dissolved to 2.00 liter total solution → M = 0.500/2.00 = 0.250 M. Volume here is the final solution volume, not the water added.

Assumptions

Volume is the total solution volume after mixing
Solute dissolves completely