Molar Mass Calculator

What it is

Type a chemical formula — $\mathrm{H_{2}O}$, $\mathrm{Ca(OH)_{2}}$, even $\mathrm{CuSO_{4}\cdot 5H_{2}O}$ — and the calculator answers instantly: the molar mass, a full element-by-element breakdown table with each element’s mass percentage, and a converter for turning moles into grams and back. It understands brackets, multipliers and hydrate dots the way your textbook writes them, and it is fully bilingual, Bangla numerals included. Presets for common compounds — water, salt, glucose, chalk — give you one-tap starting points.

Why it helps you study

Mole sums carry easy marks and lose them just as easily — one missed bracket, one forgotten water of crystallisation, and the whole answer collapses. The calculator does the arithmetic flawlessly so you can check your own working line by line: the breakdown table shows exactly which element contributes what share of the total. Use it while practising, not instead of practising, and mass percentages start to feel intuitive.

How to use it

1. Open the molar mass calculator page.
2. Type your formula, or tap a preset like water, salt or glucose.
3. Read the molar mass and the element-by-element percentage table.
4. Use the converter to switch between moles and grams for that compound.