Chemistry Calculators
Free chemistry within our science calculators.
37 calculators available
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Chemistry
This topic includes 37 working calculators in science calculators. Each page links directly to the live tool.
- Arrhenius Equation CalculatorCalculate reaction rate constants and activation energy.Open tool
- Battery Energy Density CalculatorCalculate battery energy density, capacity, and performance metrics.Open tool
- Beer–Lambert Law CalculatorCalculate absorbance, concentration, molar absorptivity, and path length.Open tool
- Buffer Solution CalculatorCalculate pH and composition of buffer solutions using Henderson-Hasselbalch equation.Open tool
- Standard Cell Potential CalculatorCalculate standard cell potential for electrochemical reactions.Open tool
- Chromatography Retention Factor (Rf) CalculatorCalculate Rf values for thin-layer chromatography (TLC) and paper chromatography.Open tool
- Collision Theory CalculatorAnalyze molecular collision rates and reaction kinetics.Open tool
- Common Base Amplifier CalculatorUse this free common base amplifier for science calculations. Get instant, accurate results with clear inputs and no signup required.Open tool
- Conductivity CalculatorCalculate electrical conductivity of chemical solutions.Open tool
- Empirical & Molecular Formula CalculatorDetermine empirical and molecular formulas from composition data.Open tool
- Enthalpy Change CalculatorUse this free enthalpy change calculator for science calculations. Get instant, accurate results with clear inputs and no signup required.Open tool
- Entropy & Gibbs Free Energy CalculatorCalculate ΔS and ΔG to predict reaction spontaneity.Open tool
- Equilibrium Constant (K) CalculatorCalculate equilibrium constant from concentrations.Open tool
- Faraday's Law of Electrolysis CalculatorCalculate mass deposited or dissolved during electrolysis using Faraday's law.Open tool
- Gel Electrophoresis Band Size CalculatorUse this free gel electrophoresis band size for science calculations. Get instant, accurate results with clear inputs and no signup required.Open tool
- Gravimetric Analysis CalculatorCalculate mass percent and composition from gravimetric analysis data.Open tool
- Heat (q = mcΔT) CalculatorCalculate heat transfer and temperature changes.Open tool
- Ionic Strength CalculatorCalculate ionic strength of solutions for activity coefficient corrections.Open tool
- Ka/Kb CalculatorCalculate acid and base dissociation constants.Open tool
- Limiting Reactant CalculatorIdentify the limiting reagent in chemical reactions.Open tool
- Mole CalculatorConvert between amount in moles, sample mass, and molar mass using n = m/M.Open tool
- Molar Mass and Molecular Weight CalculatorCalculate molar mass, relative formula mass, and elemental composition from a chemical formula.Open tool
- Nernst Equation CalculatorCalculate cell potential under non-standard conditions using the Nernst equation.Open tool
- Neutralization Reaction CalculatorCalculate volumes and concentrations for acid-base neutralization reactions.Open tool
- Nucleic Acid Dilution CalculatorCalculate DNA or RNA stock and diluent volumes for a target mass concentration.Open tool
- Percent Error and Absolute Error CalculatorCalculate signed difference, absolute error, and absolute percent error from an observed and accepted value.Open tool
- Percent Yield CalculatorCompare actual yield to theoretical yield of reactions.Open tool
- pH and pOH CalculatorCalculate pH, pOH, hydrogen ion concentration, and hydroxide ion concentration for aqueous solutions at 25 °C.Open tool
- Phase Diagram CalculatorEstimate the equilibrium phase of pure water from temperature and absolute pressure.Open tool
- Photoelectric Effect CalculatorUse this free photoelectric effect calculator for science calculations. Get instant, accurate results with clear inputs and no signup required.Open tool
- Reaction Quotient (Q) CalculatorPredict reaction direction by comparing Q and K.Open tool
- Reaction Stoichiometry CalculatorCalculate amounts of reactants and products in chemical reactions.Open tool
- Solubility Product (Ksp) CalculatorCalculate solubility product from molar solubility or solve molar solubility from Ksp and salt stoichiometry.Open tool
- Solution Mixing CalculatorCalculate final concentration when mixing two solutions or find source volumes for a target concentration.Open tool
- Spectrophotometry Calibration CalculatorCreate calibration curves and calculate unknown concentrations from absorbance.Open tool
- Titration Curve CalculatorGenerate a weak-acid and strong-base titration curve and calculate pH at a selected titrant volume.Open tool
- Van der Waals Equation CalculatorCalculate real gas behavior with intermolecular forces.Open tool
Frequently asked questions
What can I calculate with Chemistry Calculators?
Free chemistry within our science calculators.
Are the Chemistry Calculators free to use?
All 37 chemistry calculators on this site are free, work in your browser, and require no signup or download.
How do I find the right chemistry calculators?
Use the subcategory filters and search bar on this page to narrow the list, then open the calculator page that matches your task for the tool and a quick guide.