Convert parts per trillions to parts per billions
1 ppt = 0.001 ppb — exactly. Both units are defined against the SI, so this factor is a fraction, not an approximation.
0.001ppb
As a fraction: 1/1000
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1 ppt = 0.001 ppb
Show this value in all 8 parts & percentages units
- Fractions 1 1e-12
- Percents % 1e-10
- Per milles ‰ 1e-9
- Per myriads ‱ 1e-8
- Parts per millions ppm 0.000 001
- Parts per billions ppb 0.001
- Parts per trillions ppt 1
- Parts per quadrillions ppq 1000
Every row is Parts per trillion (ppt) converted through the fraction, in exact rational arithmetic.
How to convert parts per trillions to parts per billions
Multiply the number of parts per trillions by 0.001 to get parts per billions.
The exact factor is 0.001 — as a fraction, 1/1000.
Parts per trillion to Parts per billion conversion table
| Parts per trillions (ppt) | Parts per billions (ppb) |
|---|---|
| 1 ppt | 0.001 |
| 2 ppt | 0.002 |
| 3 ppt | 0.003 |
| 5 ppt | 0.005 |
| 10 ppt | 0.01 |
| 20 ppt | 0.02 |
| 25 ppt | 0.025 |
| 50 ppt | 0.05 |
| 100 ppt | 0.1 |
| 250 ppt | 0.25 |
| 500 ppt | 0.5 |
| 1000 ppt | 1 |
Parts per billion to Parts per trillion conversion table
| Parts per billions (ppb) | Parts per trillions (ppt) |
|---|---|
| 1 ppb | 1000 |
| 2 ppb | 2000 |
| 3 ppb | 3000 |
| 5 ppb | 5000 |
| 10 ppb | 10 000 |
| 20 ppb | 20 000 |
| 25 ppb | 25 000 |
| 50 ppb | 50 000 |
| 100 ppb | 100 000 |
| 250 ppb | 250 000 |
| 500 ppb | 500 000 |
| 1000 ppb | 1 000 000 |
Frequently asked
How many parts per billions are in a parts per trillion?
One parts per trillion equals 0.001 parts per billions (ppt → ppb). That figure is exact, not rounded.
How do you convert parts per trillions to parts per billions?
Multiply the number of parts per trillions by 0.001 to get parts per billions.
What is 1 ppb in parts per trillions?
One parts per billion is 1000 parts per trillions.
What is 10 ppt in ppb?
10 ppt = 0.01 ppb.