About the Ksp Calculator

A free tool for converting between Ksp and molar solubility for any salt stoichiometry.

What it is

This calculator uses Ksp = x^x ยท y^y ยท s^(x+y) to convert between the solubility product constant and molar solubility for a salt Aโ‚“Bแตง, given the number of cations (x) and anions (y) it dissociates into.

Features

Any stoichiometry

Works for 1:1, 1:2, 2:1, 2:3, and any other Aโ‚“Bแตง ratio.

Solve either direction

Ksp to solubility, or solubility to Ksp.

Scientific notation

Results formatted for readability at any magnitude.

Instant, private

Runs entirely in your browser. No data is sent anywhere.

Ready to use it?

Free, no sign-up required.

Open the Ksp Calculator