💧 Solubility Calculator
Calculate the maximum amount of solute that will dissolve in a given solvent volume, or the minimum solvent needed to dissolve a given amount of solute.
Frequently asked questions
Why is solubility usually expressed as g per 100 mL?
Expressing solubility per 100 mL (or per 100 g) of solvent gives a convenient, easily scaled reference point — multiplying by any actual solvent volume divided by 100 immediately gives the maximum soluble mass in that volume, without needing to convert units first.
What happens if I add more solute than the calculated maximum?
Beyond the calculated maximum, additional solute will not dissolve and will remain as a solid precipitate or suspended particulate, resulting in a saturated solution with excess undissolved material — unless the temperature or other conditions are changed to increase solubility.
Does this account for how temperature affects solubility?
This calculator uses whatever solubility value you enter directly; it does not itself model temperature dependence. Make sure the solubility value used corresponds to your solvent's actual temperature, since solubility for most solids increases with temperature (though some compounds behave oppositely).
Accuracy & how this is derived
Derivation: Direct proportional scaling of a reference solubility value (g solute per 100 mL solvent) to the actual solvent volume or solute mass in question.
Validated against: Basic proportional arithmetic — accuracy depends entirely on the solubility reference value entered by the user, which should correspond to the correct temperature and solvent system.
⚠️ For educational and research support only — verify critical results independently before use in regulated, clinical, or publication-bound work.
✔ Last updated: July 2026 · Report an error
Working with solubility data in the lab
Solubility describes the maximum amount of a solute that will dissolve in a given quantity of solvent under specific conditions, most commonly reported as grams of solute per 100 milliliters of solvent at a reference temperature. Scaling this ratio to any actual solvent volume gives the maximum mass that can be dissolved before the solution becomes saturated, a calculation used routinely when preparing solutions at or near their solubility limit, or when working backward to determine how much solvent is needed to fully dissolve a known mass of solute.