part per million (ppm) → part per billion (ppb)
1 ppm = 1,000 ppb · ⇄ part per billion (ppb) → part per million (ppm)
Enter a valid value for the selected unit
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
ppb = ppm × 1,000
1 part per million (ppm) = 1,000 part per billion (ppb).
Popular Conversions (Concentration & Parts-Per)
Quick Conversion Reference Table: part per million (ppm) → part per billion (ppb)
| part per million (ppm) | part per billion (ppb) |
|---|---|
| 0.1 ppm | 100 ppb |
| 0.5 ppm | 500 ppb |
| 1 ppm | 1,000 ppb |
| 2 ppm | 2,000 ppb |
| 5 ppm | 5,000 ppb |
| 10 ppm | 10,000 ppb |
| 20 ppm | 20,000 ppb |
| 50 ppm | 50,000 ppb |
| 100 ppm | 100,000 ppb |
| 250 ppm | 250,000 ppb |
| 500 ppm | 500,000 ppb |
| 1,000 ppm | 1,000,000 ppb |