RRankCrack

Molarity calculator

Find molarity (mol/L) from moles of solute and solution volume in liters.

Calculator

How to use

Molarity

Molarity is moles of solute per liter of solution:

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

  • Use when the solute is dissolved and you care about volume of solution (not solvent mass).
  • SI-friendly: keep $V$ in liters for mol/L.

When to use

  • Preparing stock solutions from a known amount of solute.
  • Comparing solution strength before a titration or dilution.

Educational use only. Double-check values for labs, homework, and exams.