mmHg to atm converter
1 mmHg = 0.00131579 atm
And 1 atm = 760 mmHg. Millimetres of mercury to standard atmosphere.
Formula
atm = mmHg × 0.00131579
A reading of 15 mmHg is 15 × 0.00131579 = 0.0197368 atm.
mmHg to atm table
| mmHg | atm |
|---|---|
| 1 mmHg | 0.00131579 atm |
| 5 mmHg | 0.00657895 atm |
| 10 mmHg | 0.0131579 atm |
| 15 mmHg | 0.0197368 atm |
| 30 mmHg | 0.0394737 atm |
| 50 mmHg | 0.0657895 atm |
| 100 mmHg | 0.131579 atm |
| 500 mmHg | 0.657895 atm |
| 1,000 mmHg | 1.31579 atm |
atm to mmHg table
| atm | mmHg |
|---|---|
| 1 atm | 760 mmHg |
| 5 atm | 3,800 mmHg |
| 10 atm | 7,600 mmHg |
| 15 atm | 11,400 mmHg |
| 30 atm | 22,800 mmHg |
| 50 atm | 38,000 mmHg |
About these units
mmHg (millimetres of mercury): Blood pressure and vacuum gauges, using the conventional 13.5951 g/cm³ mercury.
atm (standard atmosphere): Defined as 101,325 Pa, roughly sea-level air pressure.
Gauge pressure (psig, barg) is measured relative to the surrounding atmosphere; absolute pressure (psia, bara) is relative to vacuum. Converting units never changes that reference: absolute = gauge + about 14.696 psi (1.01325 bar) at sea level. Stress uses the same units: 1 MPa = 1 N/mm².
Convert atm to mmHg instead · All pressure and stress conversions