Free Chemistry Calculators

Master chemistry calculations with our free online tools. Compute molar mass, balance equations, calculate molarity, determine reaction yields, and analyze solutions — perfect for students, lab technicians, and chemists.

Stoichiometry

Molar mass, mole conversion, limiting reagent, and yield calculators.

Solutions

Molarity, dilution, osmolarity, and concentration calculators.

Reactions

Reaction rate, equilibrium constant, and enthalpy calculators.

Calculators coming soon.

Organic

Molecular formula, degree of unsaturation, and functional group calculators.

Electrochemistry

Cell potential, Faraday law, and electrode calculators.

Nuclear Chemistry

Radioactive decay, half-life, and nuclear binding energy calculators.

Analytical

Titration, Beer-Lambert law, and analytical chemistry calculators.

General Chemistry

Ideal gas law, density, and general chemistry reference calculators.

Thermochemistry

Enthalpy, entropy, Gibbs energy, and reaction energy calculators.

Atomic & Molecular

Atomic mass, electron configuration, bond order, and crystal structure calculators.

Acids & Bases

pH, pKa, Henderson-Hasselbalch, and neutralization calculators.

Gas Laws

Partial pressure, diffusion, and gas behavior calculators.