1 millimeter of mercury (mmHg) = 0.0013157897 standard atmospheres (atm). To convert, divide by 759.9998917: atm = mmHg ÷ 759.9998917. For example, 50 mmHg = 0.0657894831 atm.
atm = mmHg ÷ 759.9998917
Millimeters of mercury to standard atmospheres table
| Millimeters of mercury (mmHg) | Standard atmospheres (atm) |
|---|---|
| 10 | 0.0131578966 |
| 20 | 0.0263157932 |
| 30 | 0.0394736898 |
| 40 | 0.0526315865 |
| 50 | 0.0657894831 |
| 100 | 0.1315789661 |
| 200 | 0.2631579322 |
| 250 | 0.3289474153 |
| 500 | 0.6578948306 |
| 1,000 | 1.315789661 |
| 2,500 | 3.289474153 |
| 5,000 | 6.578948306 |
| 10,000 | 13.15789661 |
The two units
Millimeter of mercury (mmHg). The conventional value, 133.322387415 pascals; blood pressure is measured in mmHg.
Standard atmosphere (atm). Exactly 101,325 pascals: average air pressure at sea level.
Convert millimeters of mercury to other units
- Millimeters of mercury to pascals — 1 mmHg = 133.3223874 Pa
- Millimeters of mercury to kilopascals — 1 mmHg = 0.1333223874 kPa
- Millimeters of mercury to bars — 1 mmHg = 0.0013332239 bar
- Millimeters of mercury to pounds per square inch — 1 mmHg = 0.0193367775 psi
- Millimeters of mercury to inches of mercury — 1 mmHg = 0.0393700787 inHg
Convert other units to standard atmospheres
Questions people ask
- How many standard atmospheres are in a millimeter of mercury?
- 0.0013157897.
- How do you convert millimeters of mercury to standard atmospheres?
- atm = mmHg ÷ 759.9998917. It is the same as dividing by 759.9998917.
- How do you convert standard atmospheres back to millimeters of mercury?
- mmHg = atm × 759.9998917. See standard atmospheres to millimeters of mercury.
Results use the legal definitions of each unit and are checked against the Pint unit library. Display rounds to 10 significant digits. All unit conversions · More tools
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