Conversion

PPM Calculator

Convert a ratio into parts per million.

Calculated Output

Parts per million (ppm) 1,500

Percent (%) 0.15

Formula: ppm = ratio × 1,000,000

Step-by-Step Breakdown

1. Values used:

2. Ratio (amount/total) = 0.0015

4. Parts per million = 1,500ppm

5. Percent = 0.15%

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The math behind it

ppm = ratio × 1,000,000; percent = ratio × 100.

0.0015 → 1,500 ppm.

1 ppm?

1 part in a million — like 1 mg in 1 L of water.