How to convert torr to atmospheres
Formula: atm = Torr ÷ 760
Worked example: 760 Torr → 760 ÷ 760 = 1 atm
Torr to atmospheres conversion chart
| Torr (Torr) | Atmospheres (atm) |
|---|---|
| 1 Torr | 0.00131579 atm |
| 2 Torr | 0.00263158 atm |
| 3 Torr | 0.00394737 atm |
| 4 Torr | 0.00526316 atm |
| 5 Torr | 0.00657895 atm |
| 6 Torr | 0.00789474 atm |
| 7 Torr | 0.00921053 atm |
| 8 Torr | 0.0105263 atm |
| 9 Torr | 0.0118421 atm |
| 10 Torr | 0.0131579 atm |
| 12 Torr | 0.0157895 atm |
| 15 Torr | 0.0197368 atm |
| 20 Torr | 0.0263158 atm |
| 25 Torr | 0.0328947 atm |
| 30 Torr | 0.0394737 atm |
| 40 Torr | 0.0526316 atm |
| 50 Torr | 0.0657895 atm |
| 75 Torr | 0.0986842 atm |
| 100 Torr | 0.131579 atm |
| 250 Torr | 0.328947 atm |
| 500 Torr | 0.657895 atm |
| 1,000 Torr | 1.31579 atm |
What is a torr?
The torr is 1/760 of a standard atmosphere, about 133.32 pascals, and is almost identical to the millimeter of mercury. It is used for vacuum systems in laboratories and the semiconductor industry.
What is an atmosphere?
The standard atmosphere is defined as exactly 101,325 pascals, the average air pressure at sea level. Divers count roughly one extra atmosphere for every 10 meters, or 33 feet, of seawater.