Convert parts per millions to percents
1 ppm = 0.0001 % — exactly. Both units are defined against the SI, so this factor is a fraction, not an approximation.
0.0001%
As a fraction: 1/10000
1 ppm = 0.0001 %
How to convert parts per millions to percents
Multiply the number of parts per millions by 0.0001 to get percents.
The exact factor is 0.0001 — as a fraction, 1/10000.
Parts per million to Percent conversion table
| Parts per millions (ppm) | Percents (%) |
|---|---|
| 1 ppm | 0.0001 |
| 2 ppm | 0.0002 |
| 3 ppm | 0.0003 |
| 5 ppm | 0.0005 |
| 10 ppm | 0.001 |
| 20 ppm | 0.002 |
| 25 ppm | 0.0025 |
| 50 ppm | 0.005 |
| 100 ppm | 0.01 |
| 250 ppm | 0.025 |
| 500 ppm | 0.05 |
| 1000 ppm | 0.1 |
Percent to Parts per million conversion table
| Percents (%) | Parts per millions (ppm) |
|---|---|
| 1 % | 10 000 |
| 2 % | 20 000 |
| 3 % | 30 000 |
| 5 % | 50 000 |
| 10 % | 100 000 |
| 20 % | 200 000 |
| 25 % | 250 000 |
| 50 % | 500 000 |
| 100 % | 1 000 000 |
| 250 % | 2 500 000 |
| 500 % | 5 000 000 |
| 1000 % | 10 000 000 |
Frequently asked
How many percents are in a parts per million?
One parts per million equals 0.0001 percents (ppm → %). That figure is exact, not rounded.
How do you convert parts per millions to percents?
Multiply the number of parts per millions by 0.0001 to get percents.
What is 1 % in parts per millions?
One percent is 10000 parts per millions.
What is 10 ppm in %?
10 ppm = 0.001 %.