Convert pounds per square inch to millimeters of mercury
Pound per square inch (psi) to millimeter of mercury (mmHg). One pound per square inch equals 51.7149 millimeters of mercury.
Formula
Pound per square inch to millimeter of mercury conversion table
| Pounds per square inch | Millimeters of mercury | Millimeters of mercury | Pounds per square inch |
|---|---|---|---|
| 1 psi | 51.7149 mmHg | 1 mmHg | 0.019337 psi |
| 2 psi | 103.43 mmHg | 2 mmHg | 0.038674 psi |
| 3 psi | 155.14 mmHg | 3 mmHg | 0.05801 psi |
| 5 psi | 258.57 mmHg | 5 mmHg | 0.096684 psi |
| 10 psi | 517.15 mmHg | 10 mmHg | 0.193368 psi |
| 20 psi | 1034.3 mmHg | 20 mmHg | 0.386736 psi |
| 50 psi | 2585.75 mmHg | 50 mmHg | 0.966839 psi |
| 100 psi | 5171.49 mmHg | 100 mmHg | 1.9337 psi |
| 500 psi | 25857.46 mmHg | 500 mmHg | 9.6684 psi |
| 1000 psi | 51714.93 mmHg | 1000 mmHg | 19.3368 psi |
To convert pounds per square inch to millimeters of mercury, multiply the number of pounds per square inch by 51.7149. One pound per square inch equals 51.7149 millimeters of mercury, and one millimeter of mercury equals 0.019337 pounds per square inch, so the relationship is fixed and exact. As a worked example, 10 psi comes to 517.15 mmHg. Enter your own figure in the converter above to get an instant answer, or use the swap button to flip the direction. This is a pressure conversion, and like every tool on UnitGlide it runs locally in your browser with no account or upload required. The table further down shows a range of common pound per square inch values already worked out in millimeters of mercury, plus the reverse millimeter of mercury to pound per square inch direction, which is handy for quick reference or double-checking a result by hand.
Frequently asked questions
How many millimeters of mercury are in a pound per square inch?
One pound per square inch equals 51.7149 millimeters of mercury. The ratio is constant, so you can multiply any number of pounds per square inch by 51.7149 to get millimeters of mercury.
What is the formula to convert pounds per square inch to millimeters of mercury?
Use millimeters of mercury = pounds per square inch × 51.7149. UnitGlide applies this exact formula for every value, so results stay accurate across the whole range.
How do I convert millimeters of mercury back to pounds per square inch?
Go the other way by using one millimeter of mercury equals 0.019337 pounds per square inch. You can also press the swap button in the converter above to flip the direction in one click.
Is this pound per square inch to millimeter of mercury converter accurate?
Yes. It uses internationally defined SI conversion factors, as maintained by the BIPM, and all math runs in your browser so nothing is rounded away on a server. For everyday use the displayed precision is more than enough.