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Molar mass calculator
Enter a chemical formula such as H2O, Ca(OH)2 or CuSO4·5H2O to calculate its molar mass.
How do I calculate molar mass?
Type a formula using element symbols and numbers. Parentheses and hydrate dots are supported. The calculator lists each supported atom count and its estimated molar mass in grams per mole.
Frequently asked questions
How do I calculate molar mass?
Type a formula using element symbols and numbers. Parentheses and hydrate dots are supported. The calculator lists each supported atom count and its estimated molar mass in grams per mole.
Is my formula uploaded?
No. Your formula is calculated in this browser and is not sent to a server.