How to Convert ppb to Per Mille
To convert ppb to per mille, divide the value by 1000000.
The Formula
Per Mille = ppb ÷ 1000000
Key Fact
1 per mille = 1000000 ppb
Tip: To convert per mille back to ppb, multiply by 1000000.
ppb to Per Mille
Convert ppb (ppb) to per mille (‰) with formulas, examples, and conversion tables.
ppb
‰
1 ppb = 1e-6 ‰
Full precision:0.000001 ‰
Step-by-Step Solution
To convert 1 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:
1 ÷ 1000000 = 1e-6 per mille
So 1 ppb = 1e-6 per mille.
Quick check: 1e-6 × 1000000 = 1 ppb
Example Conversions
Example 1: 1 ppb = 1e-6 ‰
1 ÷ 1000000 = 1e-6
1 ÷ 1000000 = 1e-6
Example 2: 5 ppb = 5e-6 ‰
5 ÷ 1000000 = 5e-6
5 ÷ 1000000 = 5e-6
Example 3: 10 ppb = 1e-5 ‰
10 ÷ 1000000 = 1e-5
10 ÷ 1000000 = 1e-5
ppb to Per Mille Table
| ppb | Per Mille |
|---|---|
| 1 ppb | 1e-6 ‰ |
| 2 ppb | 2e-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 ‰ |
| 250 ppb | 0.00025 ‰ |
| 500 ppb | 0.0005 ‰ |
| 1000 ppb | 0.001 ‰ |
1 Parts per Billion in Other Units
| Unit | 1 ppb = |
|---|---|
| PPB to PPM | 0.001 ppm |
| ppb to ppt | 1000 ppt |
| ppb to Percent | 1e-7 % |
| ppb to Per Mille | 0.000001 ‰ |
| ppb to mg/L | 0.001 mg/L |
| ppb to g/L | 0.000001 g/L |
| ppb to μg/L | 1 μg/L |
| ppb to mg/m³ | 1 mg/m³ |