Pressure
Atmospheres to Millimeters of Mercury
Convert atmospheres to millimeters of mercury instantly.
About this conversion
Atmospheres (atm) equal normal air pressure at sea level: 1 atm = 101,325 Pa ≈ 1.013 bar. Millimeters of mercury (mmHg) are used for blood pressure. Normal blood pressure is approximately 120/80 mmHg. Use the converter above to quickly go from atmospheres to millimeters of mercury.
How to use
Enter a value in the atmospheres field and instantly see the result in millimeters of mercury. Click the swap button to reverse the conversion.
Manual calculation
1 atmospheres = 760 millimeters of mercury. Example: 10 atm = 7,600 mmHg.
Frequently asked questions
How many millimeters of mercury are in 1 atmospheres?
1 Atmospheres equals 760 millimeters of mercury.
When do you use millimeters of mercury?
Millimeters of mercury (mmHg) are used for blood pressure. Normal blood pressure is approximately 120/80 mmHg.