Chemistry Calculators
Use these free calculators to complete three common chemistry tasks: prepare a dilution, balance a neutral chemical equation, or calculate molar mass from a formula. Each tool runs in your browser and shows the result along with the calculation behind it.
Choose the right calculator
| You need to… | Use this tool | What it returns |
|---|---|---|
Find one missing concentration or volume in C₁V₁ = C₂V₂ | Dilution Calculator | The unknown value, dilution factor, solvent volume, and unit conversions |
| Find the smallest whole-number reaction coefficients | Chemical Equation Balancer | A balanced equation, coefficient list, and atom-conservation table |
| Convert a chemical formula into grams per mole | Molar Mass Calculator | Total molar mass and an element-by-element contribution table |
What each tool assumes
The dilution calculator applies solute conservation and the ideal volume relationship C₁V₁ = C₂V₂. Its V₂ value is the final total solution volume, not automatically the amount of solvent to pour in.
The equation balancer handles neutral formulas and finds a smallest positive integer ratio. It does not yet balance ionic charges or electron half-reactions.
The molar mass calculator supports element symbols, grouped formulas, and hydrates. It uses CIAAW 2024 abridged standard atomic weights where available; natural isotope composition can make a real sample differ slightly.