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
More converter tools
Readable results
Ranges, ± tolerances, feet/inches and clock durations work in the value field.
Unit picker
Export this result
1 ppm = 0.0001 %
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 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 %.