What is a chemical equation balancer?

A chemical equation balancer finds the correct coefficients for each compound in a chemical reaction so that atoms of every element are conserved on both sides, satisfying the law of conservation of mass.

How do I enter a chemical equation?

Type the reactants on the left, use -> or an arrow for the separator, and type the products on the right. Use standard chemical notation like H2O, Ca(OH)2, or Fe2(SO4)3. Example: H2 + O2 -> H2O

What types of equations can this tool balance?

This tool can balance any molecular chemical equation including synthesis, decomposition, single replacement, double replacement, combustion, and complex redox reactions. It handles parentheses like Ca(OH)2 and complex compounds like KMnO4.

How does the balancing algorithm work?

The balancer uses Gaussian elimination on a matrix of element coefficients to find the null space, which represents the set of smallest whole-number coefficients that balance all elements simultaneously.

Is this chemistry equation balancer free to use?

Yes! This chemistry equation balancer is completely free with no signup, no registration, and no limitations. It runs entirely in your browser with no data sent to any server.

Free Online Chemistry Equation Balancer (No Signup)

Enter a chemical equation and click Balance to find the correct coefficients. Use standard notation: element symbols with numbers for subscripts (e.g., H2O, Ca(OH)2). Separate reactants and products with -> or =. Includes molar mass calculations, stoichiometry tools, and reaction classification.

Chemistry Equation Balancer

Example Equations

Recent History

Chemistry Equation Balancer

Example Equations

Recent History Clear

Recent History