Convert Atmospheres (atm) to Torr
Enter a value below to convert Atmospheres (atm) to Torr.
Conversion:
1 Atmospheres (atm) = 760.00210018 Torr
How to Convert Atmospheres (atm) to Torr
1 atm = 760.00210018 torr
1 torr = 0.0013157858377 atm
Example: convert 15 Atmospheres (atm) to Torr:
25 atm = 19000.052504 torr
Atmospheres (atm) to Torr Conversion Table
| Atmospheres (atm) | Torr |
|---|---|
| 0.01 atm | 7.6000210018 torr |
| 0.1 atm | 76.000210018 torr |
| 1 atm | 760.00210018 torr |
| 2 atm | 1520.0042004 torr |
| 3 atm | 2280.0063005 torr |
| 5 atm | 3800.0105009 torr |
| 10 atm | 7600.0210018 torr |
| 20 atm | 15200.042004 torr |
| 50 atm | 38000.105009 torr |
| 100 atm | 76000.210018 torr |
| 1000 atm | 760002.10018 torr |
Atmospheres (atm)
Definition
A standard atmosphere (atm) is a unit of pressure defined as exactly 101,325 pascals. It represents the average atmospheric pressure at sea level.
History
The standard atmosphere was defined in 1954 as a reference standard for pressure. It was historically based on mercury barometer readings and the average weight of the Earth's atmosphere at sea level.
Current use
Atmospheres are used in chemistry (standard conditions for gas calculations), diving (dive depth pressure ratings), and as a reference point for comparing relative pressures across different systems.
Torr
Definition
A torr is a unit of pressure equal to 1/760 of a standard atmosphere, or approximately 133.322 pascals. It is nearly equivalent to one millimeter of mercury (mmHg).
History
The torr was named after Evangelista Torricelli, the Italian physicist who invented the mercury barometer in 1644. It was defined to provide a convenient way to express vacuum and low-pressure measurements.
Current use
Torr is widely used in vacuum science, semiconductor manufacturing, and laboratory settings for measuring low pressures. It remains a standard unit in physics and materials processing.