Molarity Calculator
Calculate molarity from moles of solute and final solution volume.
How to use
- Enter moles of solute.
- Enter final solution volume in litres and calculate.
Capabilities and scope
The runner applies the basic molarity definition in mol/L.
How it works
It uses M = moles / liters.
Example
0.5 mol in 2 L gives 0.25 M.
Useful for
- Calculate basic laboratory solution molarity
- Check the relationship between amount of substance and final volume
Before you use it
- It does not convert mass to moles or model volume change on mixing.
Frequently asked questions
Should I enter solvent volume?
Molarity is based on final solution volume, so use the post-mixing total volume when possible.