Convert parts per millions to parts per billions
1 ppm = 1000 ppb — exactly. Both units are defined against the SI, so this factor is a fraction, not an approximation.
1000ppb
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1 ppm = 1000 ppb
Show this value in all 8 parts & percentages units
- Fractions 1 0.000 001
- Percents % 0.0001
- Per milles ‰ 0.001
- Per myriads ‱ 0.01
- Parts per millions ppm 1
- Parts per billions ppb 1000
- Parts per trillions ppt 1 000 000
- Parts per quadrillions ppq 1 000 000 000
Every row is Parts per million (ppm) converted through the fraction, in exact rational arithmetic.
How to convert parts per millions to parts per billions
Multiply the number of parts per millions by 1000 to get parts per billions.
The exact factor is 1000 .
Parts per million to Parts per billion conversion table
| Parts per millions (ppm) | Parts per billions (ppb) |
|---|---|
| 1 ppm | 1000 |
| 2 ppm | 2000 |
| 3 ppm | 3000 |
| 5 ppm | 5000 |
| 10 ppm | 10 000 |
| 20 ppm | 20 000 |
| 25 ppm | 25 000 |
| 50 ppm | 50 000 |
| 100 ppm | 100 000 |
| 250 ppm | 250 000 |
| 500 ppm | 500 000 |
| 1000 ppm | 1 000 000 |
Parts per billion to Parts per million conversion table
| Parts per billions (ppb) | Parts per millions (ppm) |
|---|---|
| 1 ppb | 0.001 |
| 2 ppb | 0.002 |
| 3 ppb | 0.003 |
| 5 ppb | 0.005 |
| 10 ppb | 0.01 |
| 20 ppb | 0.02 |
| 25 ppb | 0.025 |
| 50 ppb | 0.05 |
| 100 ppb | 0.1 |
| 250 ppb | 0.25 |
| 500 ppb | 0.5 |
| 1000 ppb | 1 |
Frequently asked
How many parts per billions are in a parts per million?
One parts per million equals 1000 parts per billions (ppm → ppb). That figure is exact, not rounded.
How do you convert parts per millions to parts per billions?
Multiply the number of parts per millions by 1000 to get parts per billions.
What is 1 ppb in parts per millions?
One parts per billion is 0.001 parts per millions.
What is 10 ppm in ppb?
10 ppm = 10 000 ppb.