Chemistry Calculators

Available tools

• Molarity Calculator — Solve M = n / V for molarity, amount of solute or solution volume.
• pH Calculator — Find pH, pOH, hydrogen-ion or hydroxide-ion concentration.
• Dilution Calculator — Solve the C₁V₁ = C₂V₂ dilution equation for one missing value.
• Mole Calculator — Calculate moles, mass and particle count from a molar mass.
• Molality Calculator — Solve molality, solute amount or solvent mass.
• PPM Calculator — Calculate mass-based parts per million concentration.
• Stoichiometry Calculator — Use a balanced-equation mole ratio to find theoretical product amount.
• Percent Yield Calculator — Calculate percent, actual or theoretical reaction yield.
• Titration Calculator — Solve a simple acid-base equivalence relationship.
• Half-Life Calculator — Calculate quantities and time for exponential radioactive decay.
• Equilibrium Constant (Kc) Calculator — Calculate Kc from concentrations at equilibrium.
• Cell Potential Calculator — Calculate standard cell potential from reduction potentials.

How to use these tools

Enter values with consistent units, choose the unknown quantity, and check the displayed result before using it in laboratory work. These tools support learning and calculation checks; they do not replace a laboratory protocol, safety procedure or calibrated measurement.

Chemistry references

The calculators use standard relationships. See the IUPAC definition of amount concentration and OpenStax guidance on molarity and dilution.