Percent to ppm

Convert a mass percent concentration (percent active in a product) to ppm, for example reading a product label or a saturated brine.

$$\text{ppm}=\text{percent active}\times 10,000$$

Variables

Symbol	Meaning	Unit
percent active	Mass percent of the active component	%
ppm	Concentration of the active component	ppm

Worked example

1% solution equals 10,000 ppm. 3.5% product active equals 35,000 ppm. 12% sodium hypochlorite equals 120,000 ppm. 26% sodium chloride (saturated softener brine at room temperature) equals 260,000 ppm.

---

Part of The Blueprint of Water