Free Online Chemistry Equation Balancer (No Signup) – FreeWWW

Chemistry Equation Balancer

Balance any chemical equation instantly with detailed analysis

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.

Example Equations

Recent History

How to Use This Tool

  1. Enter a chemical equation — type reactants and products separated by an arrow (e.g., H2 + O2 -> H2O) or pick from the example equations.
  2. Click Balance — the tool instantly finds the correct coefficients and displays the balanced equation.
  3. Review the details — see atom counts for each side, reaction type classification, and molar masses of all compounds.
  4. Use stoichiometry tools — switch to the Stoichiometry tab to calculate mole, mass, or volume conversions between reactants and products.

Common Use Cases