Chemistry Calculators
Free chemistry calculators for balancing equations, molar mass, pH, concentration, molarity, and more. Enter your chemical formula or reaction to get instant results with the method explained. Covers chemical equation balancer, COD calculator, IUPAC naming, and solution chemistry. Ideal for students and lab researchers.
What chemistry calculators are available online?
Over 20 free chemistry calculators cover equation balancing, molar mass, pH, concentration, and molarity. Enter H2 plus O2 gives H2O and the equation balancer returns 2H2 plus O2 gives 2H2O with balanced coefficients. For water, molar mass is 18 g/mol calculated from atomic weights. Use our free chemistry calculators for instant accurate results.
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Stoichiometry calculators 🧪
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Free Chemistry Calculators
Chemistry has some of the most calculation-heavy problems in science. Balancing equations by hand is tedious. Calculating molar mass from scratch is error-prone. These tools take care of the computation.
Over 20 chemistry calculators covering reactions, concentrations, thermodynamics, and more.
Chemical Equations
The Chemical Equation Balancer is the most used tool here. Paste in an unbalanced equation and it returns the balanced version with coefficients. The Chemical Name Calculator converts between names and formulas for common compounds.
Concentrations and Solutions
Molarity, dilution, and concentration calculators are essential for lab work and coursework alike. Enter your solute mass, solvent volume, and molar mass — get concentration in mol/L instantly.
Chemical Oxygen Demand
The COD Calculator is used in environmental science and water treatment. It estimates the oxygen required to chemically oxidise organic matter in a water sample.
For Students and Researchers
Each tool shows the formula and unit logic it uses. Chemistry notation can be tricky — these calculators make it transparent.
Calculation method reviewed against standard chemistry and IUPAC formula references.
Frequently Asked Questions
Find answers to common questions about Chemistry Calculators calculators
Over 20 chemistry calculators cover equation balancing, molar mass, pH, concentration, molarity, and chemical oxygen demand. Popular tools include the Chemical Equation Balancer, Chemical Name Calculator, and COD Calculator. Each shows the formula and unit logic so you understand the chemistry behind the result, useful from secondary school to undergraduate level.
Use the Chemical Equation Balancer. Enter your unbalanced equation using standard notation — for example H2 plus O2 gives H2O. The tool applies algebraic balancing to find the correct coefficients. It shows the balanced equation and confirms atom counts match on both sides. Essential for stoichiometry problems and lab report preparation.
Molar mass is the mass of one mole of a substance in grams per mole. It equals the sum of atomic masses of all atoms in the formula. For water H2O it is 2 times 1 plus 16 equals 18 g/mol. The Molar Mass Calculator computes this automatically from any chemical formula you enter, saving time on complex molecules.
pH measures the acidity or alkalinity of a solution on a scale of 0 to 14. A pH of 7 is neutral. Below 7 is acidic and above 7 is basic. pH equals negative log of the hydrogen ion concentration. The pH Calculator takes your H+ concentration and returns pH instantly with the formula shown for full transparency.
Yes. These tools are ideal for checking homework, preparing lab reports, and exam revision. The equation balancer alone saves significant time in stoichiometry work. Each result shows the formula used, helping students understand rather than just copying answers. Useful from GCSE and 10+2 level through to undergraduate chemistry coursework and practicals.