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Stoichiometry calculators 🧪 calculators
Explore 9 free stoichiometry calculators 🧪 calculators. Calculate in your browser with clear inputs, worked examples, and transparent methods.
9 calculators available
- Air-to-Fuel Mass Ratio & Fuel Presets
Relate air mass, fuel mass and their ratio with fixed fuel presets or a custom air-to-fuel ratio.
- Binary Mixture Mole Fraction & Molality
Find solute mole fraction and mole percent in a two-component mixture, with optional molality from solvent molar mass.
- Chromatography Bed, Flow & Residence Time
Calculate nominal bed residence time from linear flow velocity or cylindrical bed dimensions and volumetric flow.
- Dilute-Water pH, pOH & Hydrogen-Ion Estimate
Convert pH, pOH and approximate hydrogen-ion concentration in dilute water using pKw = 14 near 25°C.
- Ideal-Gas Sample Molar Mass
Estimate a gas sample’s molar mass from mass, absolute pressure, volume and temperature using the ideal-gas law.
- Mass-Fraction ppm to Molarity at 1 kg/L
Convert mass-based parts per million or billion to molarity at the fixed solution-density assumption of 1 kg/L.
- Reaction Equivalent Concentration from Mass & Volume
Calculate reaction-specific equivalents per volume from solute mass and a stated equivalents-per-mass factor.
- Solute Mass, Solution Volume & Molarity
Relate solute mass, molar mass and final solution volume to mass concentration and molarity.
- Solute Moles, Solvent Mass & Molality
Calculate molality from solute amount and solvent mass, with an optional solute-mass and molar-mass calculation.