PSI to mmHg Converter
Convert pounds per square inch (psi) to millimeters of mercury (mmHg)
Result
1 psi = 51.7149252 mmHg
1 psi in other units
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How to convert pounds per square inch to millimeters of mercury
One pound per square inch equals 51.71493 millimeters of mercury, so multiply the number of pounds per square inch by 51.71493.
mmHg = psi × 51.71493
1 psi = 51.71493 mmHg · 1 mmHg = 0.01933678 psi
Worked example
To convert 5 pounds per square inch to millimeters of mercury: 5 psi × 51.71493 = 258.5746 mmHg.
About pounds per square inch (psi)
Pounds per square inch is used for tyre pressure, air compressors and hydraulics.
About millimeters of mercury (mmHg)
Millimetres of mercury is the unit for blood pressure readings, such as 120/80 mmHg.
More conversions
PSI to other units
Frequently asked questions
How many millimeters of mercury are in one pound per square inch?
One pound per square inch equals 51.71493 millimeters of mercury.
How many pounds per square inch are in one millimeter of mercury?
One millimeter of mercury equals 0.01933678 pounds per square inch.
How do I convert pounds per square inch to millimeters of mercury?
Use the formula mmHg = psi × 51.71493. For example, 5 psi × 51.71493 = 258.5746 mmHg.