How do I use the Chemical Equation Balancer?

Enter the required values and the Chemical Equation Balancer will instantly calculate and display the result. No registration required.

Is the Chemical Equation Balancer free?

Yes, all tools on CalcBOX are completely free with no registration required.

All calculations are performed in your browser. No data is sent to any server.

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Chemical Equation Balancer

Auto-balance chemical equations. Molar mass calculator and element analysis.

Common Reactions

Chemical Equation

Use +, ->, →, or = as separators. Subscripts as numbers (e.g. H2O, Fe2O3). Parentheses supported: Ca(OH)2

Supported Elements

H 1.008He 4.003Li 6.941Be 9.012B 10.811C 12.011N 14.007O 15.999F 18.998Ne 20.18Na 22.99Mg 24.305Al 26.982Si 28.086P 30.974S 32.065Cl 35.453Ar 39.948K 39.098Ca 40.078Ti 47.867Cr 51.996Mn 54.938Fe 55.845Co 58.933Ni 58.693Cu 63.546Zn 65.38Br 79.904Ag 107.868I 126.904Ba 137.327Pt 195.084Au 196.967Pb 207.2

📖How to Use

1Enter a chemical equation (e.g., H2 + O2 → H2O)
2Click balance to automatically calculate integer coefficients
3Verify that atom counts match on both sides for each element

💡Tips & Knowledge

•Law of conservation of mass: the type and number of atoms must be equal on both sides
•Also supports half-reaction method and balancing oxidation-reduction equations
•Notation: element symbols start with uppercase; numbers are written as subscripts (H₂O)

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All calculations run in your browser. No data is sent to any server.