mmHg to Atmospheres Converter
Convert mmHg to atm instantly. 1 mmHg = 0.001315789661 atm.
Conversion Formula
atm = mmHg × 0.001315789661
Example
25 mmHg × 0.001315789661 = 0.03289474153 atm
Convert the other way: Atmospheres to mmHg →
mmHg to Atmospheres Conversion Table
| mmHg (mmHg) | Atmospheres (atm) |
|---|---|
| 0.1 | 0.000131578966 |
| 0.5 | 0.000657894831 |
| 1 | 0.001315789661 |
| 2 | 0.002631579322 |
| 5 | 0.006578948306 |
| 10 | 0.01315789661 |
| 20 | 0.02631579322 |
| 25 | 0.03289474153 |
| 50 | 0.06578948306 |
| 100 | 0.1315789661 |
| 500 | 0.6578948306 |
| 1,000 | 1.315789661 |
About These Units
- mmHg (mmHg)
- The pressure exerted by a 1 mm column of mercury, about 133.322 Pa. It is the standard unit for blood pressure readings such as 120/80, and it is almost the same as the torr used in vacuum work.
- Atmospheres (atm)
- The standard atmosphere, defined as exactly 101,325 Pa to represent typical sea-level air pressure. Chemists use it for gas laws and standard conditions, and divers use it to describe the pressure at depth.
Frequently Asked Questions
How many atm are in 1 mmHg?
1 mmHg equals 0.001315789661 atm.
How do I convert mmHg to Atmospheres?
Multiply your mmHg value by 0.001315789661. For example, 25 mmHg × 0.001315789661 = 0.03289474153 atm.
How many mmHg are in 1 atm?
1 atm equals 759.9998917 mmHg.