How to Convert ppb to ppm
To convert ppb to ppm, divide the value by 1000.
The Formula
ppm = ppb ÷ 1000
Key Fact
1 parts per million = 1000 ppb
Tip: To convert ppm back to ppb, multiply by 1000.
PPB to PPM
Convert ppb (ppb) to ppm (ppm) with formulas, examples, and conversion tables.
ppb
ppm
1 ppb (ppb) = 0.001 ppm (ppm)
Round to:
Step-by-Step Solution
1Write the conversion factor:
1 parts per million = 1000 ppb
2Divide the value by the conversion factor:
1 ÷ 1000 = 0.001
3Result:
1 ppb (ppb) = 0.001 ppm (ppm)
ppb to ppm Table
| ppb | ppm |
|---|---|
| 1 ppb | 0.001 ppm |
| 2 ppb | 0.002 ppm |
| 5 ppb | 0.005 ppm |
| 10 ppb | 0.01 ppm |
| 20 ppb | 0.02 ppm |
| 25 ppb | 0.025 ppm |
| 50 ppb | 0.05 ppm |
| 100 ppb | 0.1 ppm |
| 250 ppb | 0.25 ppm |
| 500 ppb | 0.5 ppm |
| 1000 ppb | 1 ppm |
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 | 1e-6 ‰ |
| ppb to mg/L | 0.001 mg/L |
| ppb to g/L | 1e-6 g/L |
| ppb to μg/L | 1 μg/L |
| ppb to mg/m³ | 1 mg/m³ |