QuickFreeTools

Online PPM to Percent Converter

Convert between parts per million (ppm) and percent. 1% = 10,000 ppm. Client-side only.

Frequently Asked Questions

What is the conversion?
1% = 10,000 ppm. So percent = ppm ÷ 10,000; ppm = percent × 10,000.
Example?
500 ppm = 0.05%. 2% = 20,000 ppm.
What is ppm?
Parts per million — one part per 1,000,000 (e.g. concentration).

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