Science Calculators
Physics, chemistry, and general science calculators.
Physics
Chemistry
Atoms to Moles Calculator
Convert atoms to moles or moles to atoms using Avogadro's number.
Open tool →Grams to Moles Calculator
Convert between grams and moles by selecting from 176 compounds or 118 elements, or entering a custom molar mass.
Open tool →Half-Life Calculator
Calculate remaining quantity, half-life, elapsed time, decay constant, or mean lifetime for exponential decay.
Open tool →Liters to Moles Calculator
Convert gas volume in liters to moles at STP or custom conditions.
Open tool →mg/L to PPM Converter
Convert milligrams per liter (mg/L) to parts per million (ppm), accounting for solution density.
Open tool →Molality Calculator
Calculate the molality of a solution from solute mass, molar mass, and solvent mass.
Open tool →Molar Mass Calculator
Calculate the molar mass of a substance from measured mass and moles, or verify a known molar mass.
Open tool →Molarity Calculator
Calculate the molarity of a solution from solute mass, molar mass, and solution volume.
Open tool →Mole Calculator
Calculate moles from mass and molar mass, or convert between moles, grams, and particles.
Open tool →Mole Fraction Calculator
Calculate the mole fraction of each component in a two-component mixture.
Open tool →Percent to PPM Converter
Convert a percentage value to parts per million (ppm).
Open tool →Percent Yield Calculator
Calculate percent yield from actual and theoretical yield values.
Open tool →pH Calculator
Calculate pH from hydrogen ion concentration, or find H+ concentration from pH.
Open tool →PPB to PPM Converter
Convert parts per billion (ppb) to parts per million (ppm).
Open tool →PPM Calculator
Calculate parts per million from a part and whole value.
Open tool →PPM Converter
Convert ppm to percent, ppb, mg/L, mg/kg, and other concentration units.
Open tool →PPM to mg/L Converter
Convert parts per million to milligrams per liter, accounting for solution density.
Open tool →PPM to Percent Converter
Convert parts per million (ppm) to a percentage value.
Open tool →PPM to PPB Converter
Convert parts per million (ppm) to parts per billion (ppb).
Open tool →Theoretical Yield Calculator
Calculate the theoretical yield of a product from reactant mass, molar masses, and stoichiometric ratio.
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