Quick answer: Free chemistry calculators for pH, dilutions, gas laws, molarity and ion concentrations. Get fast, accurate answers with formulas shown.
All Chemistry Calculators (5)
Dilution Calculator: C1V1 = C2V2 Solver →Free dilution calculator (C1V1 = C2V2): solve for stock volume, concentration or final volume, plus dilution factor and solvent to add.Chemistry
pH Calculator: pH, pOH & Ion Converter →Free pH calculator: convert between pH, pOH, [H+] and [OH-] instantly, with the acid/base verdict, strong vs weak acid guide and everyday pH table.ChemistryIdeal Gas Law Calculator - PV = nRT →Free ideal gas law calculator: solve PV = nRT for pressure, volume, moles or temperature, with automatic kelvin, atm and litre conversions built in.ChemistryMolarity Calculator: Moles, Volume & Concentration →Free molarity calculator: solve M = n/V for molarity, moles or volume, with unit conversion, a molarity vs molality guide and worked examples.ChemistryMolar Mass Calculator: Formula to g/mol →Free molar mass calculator: type any chemical formula to get g/mol, an element breakdown and percent composition, plus a mass-to-moles converter.Chemistry
Frequently asked questions
Are these chemistry calculators free?
Yes, all chemistry calculators here are free to use with no account needed.
What chemistry calculations are available?
pH, pOH, hydrogen and hydroxide ion conversion, solution dilution using C1V1 = C2V2, the ideal gas law (PV = nRT), and molarity (M = n/V).
Are the formulas shown?
Yes, every calculator displays the formula it uses so you can follow the working.
Can students use these for lab work?
Yes, they are handy for checking dilution prep and pH calculations before and after experiments.