Laboratory & Chemistry Calculators
Work through chemistry calculations for molarity, dilution, concentration, molecular weight and solution preparation. Check the units, purity, volume and formula used for each input, and follow the method appropriate to your experiment. Laboratory work requires suitable protective measures and validated protocols; do not rely on a calculator alone for safe preparation or handling.
Solution & Concentration
Core concentration and composition calculations for laboratory solutions.
Molarity Calculator
→Calculate molarity from solute mass or moles and solution volume.
Open calculatorMolality Calculator
→Calculate molality using moles of solute and kilograms of solvent.
Open calculatorNormality Calculator
→Calculate solution normality from equivalents and solution volume.
Open calculatorMole Fraction Calculator
→Calculate the mole fraction of a component in a mixture.
Open calculatorMass Percent Calculator
→Calculate concentration as mass percent by mass.
Open calculatorVolume Percent Calculator
→Calculate concentration as volume percent.
Open calculatorppm Calculator
→Calculate parts per million concentration for dilute solutions.
Open calculatorppb Calculator
→Calculate parts per billion concentration for very dilute solutions.
Open calculatorDilution & Solution Preparation
Prepare solutions, calculate dilutions and work with stock solutions.
Dilution Calculator
→Calculate final concentration or volume when a solution is diluted.
Open calculatorSerial Dilution Calculator
→Calculate concentration after multiple dilution steps.
Open calculatorStock Solution Calculator
→Calculate the amount of solute needed to prepare a stock solution.
Open calculatorSolution Preparation Calculator
→Calculate solute requirements for preparing a target solution.
Open calculatorC1V1 C2V2 Calculator
→Solve concentration and volume problems using C1V1 = C2V2.
Open calculatorMoles & Molecular Calculations
Calculate molar mass, moles, mass and particle relationships.
Molar Mass Calculator
→Calculate molar mass from a chemical formula.
Open calculatorMoles Calculator
→Calculate the amount of substance from mass and molar mass.
Open calculatorMass from Moles Calculator
→Calculate mass from moles and molar mass.
Open calculatorMoles from Mass Calculator
→Calculate moles from mass and molar mass.
Open calculatorMolecules to Moles Calculator
→Convert molecules or particles into moles.
Open calculatorAcid–Base Calculations
Basic hydrogen and hydroxide ion concentration calculations.
About Laboratory & Chemistry Calculators
Use these free calculators for common laboratory and chemistry calculations involving concentration, dilution, solution preparation, molar mass, moles, particles, pH and pOH.
Enter valid values and select the calculation controls provided. Calculations run in your browser and do not require an account.