How to Convert ppm to Per Mille
To convert ppm to per mille, divide the value by 1000.
The Formula
Per Mille = ppm ÷ 1000
Key Fact
1 per mille = 1000 ppm
Tip: To convert per mille back to ppm, multiply by 1000.
ppm to Per Mille
Convert ppm (ppm) to per mille (‰) with formulas, examples, and conversion tables.
ppm
‰
1 ppm = 0.001 ‰
Full precision:0.001 ‰
Step-by-Step Solution
To convert 1 ppm to per mille, we divide by 1000 because one per mille equals exactly 1000 ppm.
1 per mille = 1000 ppm
Since there are 1000 ppm in every per mille, we divide our value by this factor:
1 ÷ 1000 = 0.001 per mille
So 1 ppm = 0.001 per mille.
Quick check: 0.001 × 1000 = 1 ppm
Example Conversions
Example 1: 1 ppm = 0.001 ‰
1 ÷ 1000 = 0.001
1 ÷ 1000 = 0.001
Example 2: 5 ppm = 0.005 ‰
5 ÷ 1000 = 0.005
5 ÷ 1000 = 0.005
Example 3: 10 ppm = 0.01 ‰
10 ÷ 1000 = 0.01
10 ÷ 1000 = 0.01
ppm to Per Mille Table
| ppm | Per Mille |
|---|---|
| 1 ppm | 0.001 ‰ |
| 2 ppm | 0.002 ‰ |
| 5 ppm | 0.005 ‰ |
| 10 ppm | 0.01 ‰ |
| 20 ppm | 0.02 ‰ |
| 25 ppm | 0.025 ‰ |
| 50 ppm | 0.05 ‰ |
| 100 ppm | 0.1 ‰ |
| 250 ppm | 0.25 ‰ |
| 500 ppm | 0.5 ‰ |
| 1000 ppm | 1 ‰ |
1 Parts per Million in Other Units
| Unit | 1 ppm = |
|---|---|
| PPM to PPB | 1000 ppb |
| ppm to ppt | 1000000 ppt |
| PPM to Percent | 0.0001 % |
| ppm to Per Mille | 0.001 ‰ |
| PPM to mg/L | 1 mg/L |
| ppm to g/L | 0.001 g/L |
| ppm to μg/L | 1000 μg/L |
| ppm to mg/m³ | 1000 mg/m³ |