Unit Entity

mg/L

Milligrams per liter — numerically identical to ppm in aqueous solutions.

Definition

In dilute aqueous solutions (including pool water), mg/L and ppm are numerically equal: 1 mg/L = 1 ppm. mg/L is the SI unit preferred in scientific contexts, while ppm is the practical shorthand used in pool industry applications.

Quick Facts

Units
mg/L

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