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Convert mmHg to atm
Convert millimeter of mercury (mmHg) to atmosphere (atm) instantly. Free, no signup, nothing is uploaded — everything runs in your browser.
Millimeter of mercury (mmHg)
To
0.0013157897
Atmosphere (atm)
Millimeter of mercury to Atmosphere conversion table
| Millimeter of mercury [mmHg] | Atmosphere [atm] |
|---|---|
| 0.01 | 1.31579e-5 |
| 0.1 | 0.00013158 |
| 1 | 0.00131579 |
| 2 | 0.00263158 |
| 3 | 0.00394737 |
| 5 | 0.00657895 |
| 10 | 0.0131579 |
| 20 | 0.02631579 |
| 50 | 0.06578948 |
| 100 | 0.13157897 |
| 1,000 | 1.31578966 |
How to convert millimeter of mercury to atmosphere
atm = mmHg ÷ 759.999
Example: 760 mmHg = 760 ÷ 759.999 = 1.0000 atm (standard atmosphere)
To convert back (atmosphere to millimeter of mercury): mmHg = atm × 759.999
What is a millimeter of mercury?
A millimeter of mercury (mmHg) is a unit of pressure based on the height of a column of mercury. The standard unit for blood pressure and historically for atmospheric pressure.
What is a atmosphere?
An atmosphere (atm) is a unit of pressure equal to the average atmospheric pressure at sea level, exactly 101,325 pascals. The standard unit for many scientific and engineering contexts.