25 ppb to Per Mille
Convert 25 ppb (ppb) to per mille (‰) with formulas, examples, and conversion tables.
ppb
‰
25 ppb = 2.5e-5 ‰
Full precision:0.000025 ‰
Step-by-Step Solution
To convert 25 ppb to per mille, we divide by 1000000 because one per mille equals exactly 1000000 ppb.
1 per mille = 1000000 ppb
Since there are 1000000 ppb in every per mille, we divide our value by this factor:
25 ÷ 1000000 = 2.5e-5 per mille
So 25 ppb = 2.5e-5 per mille.
Quick check: 2.5e-5 × 1000000 = 25 ppb
ppb to Per Mille Conversion Table
| ppb | Per Mille |
|---|---|
| 1 ppb | 1e-6 ‰ |
| 2 ppb | 2e-6 ‰ |
| 3 ppb | 3e-6 ‰ |
| 4 ppb | 4e-6 ‰ |
| 5 ppb | 5e-6 ‰ |
| 10 ppb | 1e-5 ‰ |
| 20 ppb | 2e-5 ‰ |
| 25 ppb | 2.5e-5 ‰ |
| 50 ppb | 5e-5 ‰ |
| 100 ppb | 0.0001 ‰ |
25 ppb in Other Units
| Unit | 25 ppb = |
|---|---|
| PPB to PPM | 0.025 ppm |
| ppb to ppt | 25000 ppt |
| ppb to Percent | 0.0000025 % |
| ppb to Per Mille | 0.000025 ‰ |
| ppb to mg/L | 0.025 mg/L |
| ppb to g/L | 0.000025 g/L |
| ppb to μg/L | 25 μg/L |
| ppb to mg/m³ | 25 mg/m³ |