🧪 Chemistry Calculators
pH, enthalpy and concentration math with equations shown.
Choose a Calculator
pH Calculator
Find pH, pOH and hydroxide concentration from [H⁺].
Open calculator →Enthalpy (Heat) Calculator
Heat energy from mass, specific heat and temperature change.
Open calculator →PPM Calculator (Parts Per Million)
Convert a part-to-whole ratio into parts per million.
Open calculator →Molarity Calculator
Find molar concentration from mass, molar mass and solution volume.
Open calculator →Dilution Calculator
Find how much stock solution to use with the C1V1 = C2V2 equation.
Open calculator →Ideal Gas Law Calculator
Solve PV = nRT for pressure, volume, moles or temperature.
Open calculator →Percent Yield Calculator
Compare actual to theoretical yield to rate a reaction's efficiency.
Open calculator →Molar Mass Calculator
Type a chemical formula to get its molar mass in g/mol.
Open calculator →Explore Other Categories
- 🏗️ Construction & Materials
- 💰 Finance & Money
- ➗ Algebra & Math
- 🩺 Health & Medical
- ⚖️ Legal & Insurance
- 🧮 Calculus & Symbolic Math
- 🏅 Sports & Hobbies
- ⚙️ Physics & Engineering
- 🧬 Biology & Genetics
- 📊 Statistics & Probability
- 🏎️ Automotive & Racing
- 🧵 Sewing & Crafts
- 🎓 Education & Academic
- 🍞 Food & Baking
- 🗓️ Lifestyle & Misc
Looking for a different calculator?
CalculatorPlus has free tools across finance, construction, math, health and more — each one showing the formula and a worked example.