Overview
What Is a Molarity Calculator?
This tool calculates molarity (concentration) using the formula M = moles ÷ liters, a fundamental calculation for preparing chemical solutions.
Calculate molarity, moles, and volume instantly.
This tool calculates molarity (concentration) using the formula M = moles ÷ liters, a fundamental calculation for preparing chemical solutions.
Useful for preparing solutions at a specific concentration in coursework or laboratory settings.
Input the amount of substance in moles.
Input the solution volume.
The concentration updates automatically.
Molarity (M) is a measure of concentration, defined as moles of solute per liter of solution.
M = moles of solute ÷ liters of solution.
Divide milliliters by 1000 to get liters.
Divide the mass in grams by the molecular weight (g/mol) - see our molecular weight calculator.
No, other units include molality, normality, and percent concentration - each used in different contexts.
Yes, slightly, since volume can change with temperature, though this is often a minor effect for most calculations.
This calculator computes molarity from moles and volume; rearranging the formula lets you solve for either if you know the other two.
This calculates the base concentration - dilution calculations use a related formula (M1V1 = M2V2).
No, calculations happen entirely in your browser.
Yes, completely free with no sign-up required.