1 millimeter of mercury (mmHg) = 0.0393700787 inches of mercury (inHg). To convert, divide by 25.4: inHg = mmHg ÷ 25.4. For example, 5 mmHg = 0.1968503937 inHg.
inHg = mmHg ÷ 25.4
Millimeters of mercury to inches of mercury table
| Millimeters of mercury (mmHg) | Inches of mercury (inHg) |
|---|---|
| 1 | 0.0393700787 |
| 2 | 0.0787401575 |
| 3 | 0.1181102362 |
| 4 | 0.157480315 |
| 5 | 0.1968503937 |
| 10 | 0.3937007874 |
| 20 | 0.7874015748 |
| 25 | 0.9842519685 |
| 50 | 1.968503937 |
| 100 | 3.937007874 |
| 250 | 9.842519685 |
| 500 | 19.68503937 |
| 1,000 | 39.37007874 |
The two units
Millimeter of mercury (mmHg). The conventional value, 133.322387415 pascals; blood pressure is measured in mmHg.
Inch of mercury (inHg). The conventional value at 0 °C; US weather reports give barometric pressure in inHg.
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 standard atmospheres — 1 mmHg = 0.0013157897 atm
Convert other units to inches of mercury
Questions people ask
- How many inches of mercury are in a millimeter of mercury?
- 0.0393700787.
- How do you convert millimeters of mercury to inches of mercury?
- inHg = mmHg ÷ 25.4. It is the same as dividing by 25.4.
- How do you convert inches of mercury back to millimeters of mercury?
- mmHg = inHg × 25.4. See inches of mercury 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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