Convert parts per billions to fractions
1 ppb = 0.000000001 1 — exactly. Both units are defined against the SI, so this factor is a fraction, not an approximation.
1e-91
Exact decimal: 0.000000001
As a fraction: 1/1000000000
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1 ppb = 0.000000001 1
Show this value in all 8 parts & percentages units
- Fractions 1 1e-9
- Percents % 0.000 000 1
- Per milles ‰ 0.000 001
- Per myriads ‱ 0.000 01
- Parts per millions ppm 0.001
- Parts per billions ppb 1
- Parts per trillions ppt 1000
- Parts per quadrillions ppq 1 000 000
Every row is Parts per billion (ppb) converted through the fraction, in exact rational arithmetic.
How to convert parts per billions to fractions
Multiply the number of parts per billions by 0.000000001 to get fractions.
The exact factor is 0.000000001 — as a fraction, 1/1000000000.
Parts per billion to Fraction conversion table
| Parts per billions (ppb) | Fractions (1) |
|---|---|
| 1 ppb | 1e-9 |
| 2 ppb | 2e-9 |
| 3 ppb | 3e-9 |
| 5 ppb | 5e-9 |
| 10 ppb | 1e-8 |
| 20 ppb | 2e-8 |
| 25 ppb | 2.5e-8 |
| 50 ppb | 5e-8 |
| 100 ppb | 0.000 000 1 |
| 250 ppb | 0.000 000 25 |
| 500 ppb | 0.000 000 5 |
| 1000 ppb | 0.000 001 |
Fraction to Parts per billion conversion table
| Fractions (1) | Parts per billions (ppb) |
|---|---|
| 1 1 | 1 000 000 000 |
| 2 1 | 2 000 000 000 |
| 3 1 | 3 000 000 000 |
| 5 1 | 5 000 000 000 |
| 10 1 | 10 000 000 000 |
| 20 1 | 20 000 000 000 |
| 25 1 | 25 000 000 000 |
| 50 1 | 50 000 000 000 |
| 100 1 | 100 000 000 000 |
| 250 1 | 250 000 000 000 |
| 500 1 | 500 000 000 000 |
| 1000 1 | 1 000 000 000 000 |
Frequently asked
How many fractions are in a parts per billion?
One parts per billion equals 1e-9 fractions (ppb → 1). That figure is exact, not rounded.
How do you convert parts per billions to fractions?
Multiply the number of parts per billions by 0.000000001 to get fractions.
What is 1 1 in parts per billions?
One fraction is 1000000000 parts per billions.
What is 10 ppb in 1?
10 ppb = 1e-8 1.