How to convert pounds per square inch to millimeters of mercury
mmHg = psi × 51.7149252Multiply the value in pounds per square inch by 51.7149252. To go the other way, multiply by 0.01933677746 (or divide by 51.7149252).
A pound per square inch is larger than a millimeter of mercury: one pound per square inch contains 51.7149252 millimeters of mercury.
Worked examples
- 1 pound per square inch1 psi × 51.7149252 = 51.7149252 mmHg
- 5 pounds per square inch5 psi × 51.7149252 = 258.574626 mmHg
- 10 pounds per square inch10 psi × 51.7149252 = 517.149252 mmHg
- 20 pounds per square inch20 psi × 51.7149252 = 1,034.298504 mmHg
- 100 pounds per square inch100 psi × 51.7149252 = 5,171.49252 mmHg
Pounds per square inch to millimeters of mercury conversion table
Values are calculated by the conversion engine and rounded to 8 significant figures.
| Pounds per square inch (psi) | Millimeters of mercury (mmHg) |
|---|---|
| 0.1 psi | 5.1714925 mmHg |
| 0.25 psi | 12.928731 mmHg |
| 0.5 psi | 25.857463 mmHg |
| 1 psi | 51.714925 mmHg |
| 2 psi | 103.42985 mmHg |
| 3 psi | 155.14478 mmHg |
| 4 psi | 206.8597 mmHg |
| 5 psi | 258.57463 mmHg |
| 6 psi | 310.28955 mmHg |
| 7 psi | 362.00448 mmHg |
| 8 psi | 413.7194 mmHg |
| 9 psi | 465.43433 mmHg |
| 10 psi | 517.14925 mmHg |
| Pounds per square inch (psi) | Millimeters of mercury (mmHg) |
|---|---|
| 12 psi | 620.5791 mmHg |
| 15 psi | 775.72388 mmHg |
| 20 psi | 1,034.2985 mmHg |
| 25 psi | 1,292.8731 mmHg |
| 30 psi | 1,551.4478 mmHg |
| 40 psi | 2,068.597 mmHg |
| 50 psi | 2,585.7463 mmHg |
| 75 psi | 3,878.6194 mmHg |
| 100 psi | 5,171.4925 mmHg |
| 250 psi | 12,928.731 mmHg |
| 500 psi | 25,857.463 mmHg |
| 1,000 psi | 51,714.925 mmHg |
About the units
Pound per square inch (psi)
One pound-force per square inch, about 6,894.76 Pa. US tire, air-compressor and hydraulic pressures are given in psi. One pound per square inch equals 6,894.757293 pascals (Pa).
Millimeter of mercury (mmHg)
The conventional mmHg is 133.322387415 Pa. Blood pressure is measured in mmHg (e.g. 120/80).
Frequently asked questions
How many millimeters of mercury are in one pound per square inch?
There are 51.7149252 millimeters of mercury in one pound per square inch, and this value is exact by definition.
How do I convert pounds per square inch to millimeters of mercury?
Multiply the number of pounds per square inch by 51.7149252. For example, 10 psi × 51.7149252 = 517.149252 mmHg.
How many pounds per square inch are in one millimeter of mercury?
One millimeter of mercury equals 0.01933677746 pounds per square inch. That is the reverse factor, 1 ÷ 51.7149252.
What is 10 pounds per square inch in millimeters of mercury?
10 psi = 517.149252 mmHg.
Is this psi to mmHg converter accurate?
Yes. Both units are defined exactly in terms of SI units, so the conversion factor is exact; results are shown to 12 significant figures by default and you can change precision in the converter. Calculations run in your browser using the same tested engine that generated this page.