Convert mmHg to PSI

1 mmHg = 0.0193367 psi

1 mmHg = 0.0193367 psi

mmHg (mmHg) psi (psi)
0.5 0.00966836
1 0.0193367
2 0.0386734
5 0.0966836
10 0.193367
25 0.483418
50 0.966836
100 1.9337
250 4.8342
500 9.6684
1000 19.3367

To convert mmHg to psi, multiply the value by the conversion factor:

1 mmHg = 0.0193367 psi

For example: 10 mmHg = 0.193367 psi

The Conversion Formula

To convert mmHg to psi, multiply the value by the conversion factor: 1 mmHg = 0.0193367 psi. For a worked example, suppose you need to convert 25 mmHg to psi: 25 × 0.0193367 = 0.483418 psi. To convert in the opposite direction, divide by 0.0193367, or equivalently multiply by 51.7151.

About mmHg

This unit literally measures pressure by how many millimeters it can push a column of liquid mercury up a tube. It dates back to the first barometers in the 1600s. Despite being archaic, it is the absolute global standard for measuring blood pressure. When a doctor says '120 over 80', they mean mmHg. mmHg are commonly used in Blood pressure, Meteorology, Vacuum pumps, and Laboratory physics, Medicine.

Normal systolic blood pressure is around 120 mmHg.

About psi

PSI stands for 'Pounds per Square Inch'. It is the standard unit for pressure in the United States. It measures how many pounds of force are pressing on every square inch of surface. It is the unit every American driver looks for when filling their tires. psi are commonly used in Tire pressure (US), Blood pressure (rarely), Scuba tanks (US), and Industrial pumps, Paintball tanks.

A standard car tire is inflated to 30-35 psi.

When Would You Convert mmHg to psi?

Converting between mmhg and psi is one of the most common pressure conversions. You might need this conversion when working with international specifications, following instructions written for a different measurement system, or comparing values across different standards. Having the conversion factor (1 mmHg = 0.0193367 psi) memorized or bookmarked can save time in professional and everyday contexts alike.