part per million (ppm) → permille (parts per thousand) (‰)
1 ppm = 0.001 ‰ · ⇄ permille (parts per thousand) (‰) → part per million (ppm)
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All units in this category
| Converted Value | ||
|---|---|---|
| unit fraction (0–1) | 1 | — |
| percent | % | — |
| permille (parts per thousand) | ‰ | — |
| part per million | ppm | — |
| part per billion | ppb | — |
| part per trillion | ppt | — |
Conversion Formula & Definition
‰ = ppm × 0.001
1 part per million (ppm) = 0.001 permille (parts per thousand) (‰).
Popular Conversions (Concentration & Parts-Per)
Quick Conversion Reference Table: part per million (ppm) → permille (parts per thousand) (‰)
| part per million (ppm) | permille (parts per thousand) (‰) |
|---|---|
| 0.1 ppm | 0.0001 ‰ |
| 0.5 ppm | 0.0005 ‰ |
| 1 ppm | 0.001 ‰ |
| 2 ppm | 0.002 ‰ |
| 5 ppm | 0.005 ‰ |
| 10 ppm | 0.01 ‰ |
| 20 ppm | 0.02 ‰ |
| 50 ppm | 0.05 ‰ |
| 100 ppm | 0.1 ‰ |
| 250 ppm | 0.25 ‰ |
| 500 ppm | 0.5 ‰ |
| 1,000 ppm | 1 ‰ |