25 parts-pb = 25,000 parts-pm. To convert parts-per billion to parts-per million, multiply by 1,000: 25 × 1,000 = 25,000.
How to convert parts-per billion to parts-per million
parts-pm = parts-pb × 1,000
- 1 parts-pb = 1,000 parts-pm (and 1 parts-pm = 0.001 parts-pb).
- Multiply the amount by the factor: 25 × 1,000 = 25,000.
- Answer: 25 parts-pb = 25,000 parts-pm.
Parts-per Billion to Parts-per Million table
| Parts-per Billion (parts-pb) | Parts-per Million (parts-pm) |
|---|---|
| 20 parts-pb | 20,000 parts-pm |
| 21 parts-pb | 21,000 parts-pm |
| 22 parts-pb | 22,000 parts-pm |
| 23 parts-pb | 23,000 parts-pm |
| 24 parts-pb | 24,000 parts-pm |
| 25 parts-pb | 25,000 parts-pm |
| 26 parts-pb | 26,000 parts-pm |
| 27 parts-pb | 27,000 parts-pm |
| 28 parts-pb | 28,000 parts-pm |
| 29 parts-pb | 29,000 parts-pm |
| 30 parts-pb | 30,000 parts-pm |
| parts-pb | parts-pm |
|---|---|
| 1 parts-pb | 1,000 parts-pm |
| 5 parts-pb | 5,000 parts-pm |
| 10 parts-pb | 10,000 parts-pm |
| 50 parts-pb | 50,000 parts-pm |
| 100 parts-pb | 100,000 parts-pm |
| 1,000 parts-pb | 1,000,000 parts-pm |