Convert torr to atmospheres
1 Torr = 0.00131579 atm. Change the amount below, or read the formula and the reference table further down.
1 torr equals
atmospheres
1 Torr = 0.00131579 atm
The formula
Torr and atmospheres both measure pressure from the same zero, so a single multiplier does the job.
atm = Torr × 0.0013157895
Going the other way? Convert atmospheres to torr.
Torr to atmospheres table
Common values, rounded for reading.
| Torr (Torr) | Atmospheres (atm) |
|---|---|
| 1 | 0.001316 |
| 2 | 0.002632 |
| 3 | 0.003947 |
| 4 | 0.005263 |
| 5 | 0.006579 |
| 6 | 0.007895 |
| 7 | 0.009211 |
| 8 | 0.010526 |
| 9 | 0.011842 |
| 10 | 0.013158 |
| 15 | 0.019737 |
| 20 | 0.026316 |
| 25 | 0.032895 |
| 30 | 0.039474 |
| 40 | 0.052632 |
| 50 | 0.065789 |
| 75 | 0.098684 |
| 100 | 0.131579 |
| 250 | 0.328947 |
| 500 | 0.657895 |
| 1,000 | 1.3158 |
Questions people ask
- How many atmospheres are in a torr?
- One torr equals 0.0013157895 atmospheres.
- How do I convert torr to atmospheres by hand?
- Multiply the number of torr by 0.0013157895. For a rough check, 0.001 is close enough for most everyday use.
- What is 1 torr in atmospheres?
- 1 torr is 0.00131579 atmospheres.
Calcuit generates this page from a unit table, so the factors here match every other page on the site.