How to convert mmHg to atmospheres
Multiply the value in mmHg by 0.001315789661 (or divide by 759.9998917) to get atmospheres.
1 mmHg = 0.001315789661 atm
Example
To convert 10 mmHg to atmospheres: 10 × 0.001315789661 = 0.01315789661 atm.
mmHg to atm conversion chart
| MmHg (mmHg) | Atmospheres (atm) |
|---|---|
| 0.1 mmHg | 0.0001315789661 atm |
| 0.25 mmHg | 0.0003289474153 atm |
| 0.5 mmHg | 0.0006578948306 atm |
| 1 mmHg | 0.001315789661 atm |
| 2 mmHg | 0.002631579322 atm |
| 3 mmHg | 0.003947368983 atm |
| 4 mmHg | 0.005263158645 atm |
| 5 mmHg | 0.006578948306 atm |
| 6 mmHg | 0.007894737967 atm |
| 7 mmHg | 0.009210527628 atm |
| 8 mmHg | 0.01052631729 atm |
| 9 mmHg | 0.01184210695 atm |
| 10 mmHg | 0.01315789661 atm |
| 12 mmHg | 0.01578947593 atm |
| 15 mmHg | 0.01973684492 atm |
| 20 mmHg | 0.02631579322 atm |
| 25 mmHg | 0.03289474153 atm |
| 30 mmHg | 0.03947368983 atm |
| 40 mmHg | 0.05263158645 atm |
| 50 mmHg | 0.06578948306 atm |
| 75 mmHg | 0.09868422459 atm |
| 100 mmHg | 0.1315789661 atm |
| 250 mmHg | 0.3289474153 atm |
| 500 mmHg | 0.6578948306 atm |
| 1,000 mmHg | 1.315789661 atm |
About the units
Millimeter of mercury (mmHg)
mmHg is used for blood pressure; 760 mmHg ≈ 1 atm.
Standard atmosphere (atm)
A standard atmosphere is exactly 101,325 Pa, average sea-level air pressure.
Related conversions
Atmospheres to mmHg · Pascals to atmospheres · Kilopascals to atmospheres · Bar to atmospheres · Psi to atmospheres · MmHg to pascals · MmHg to kilopascals · MmHg to bar · MmHg to psi · All pressure units