Convert millimeters of mercury to pounds per square inch
Millimeter of mercury (mmHg) to pound per square inch (psi). One millimeter of mercury equals 0.019337 pounds per square inch.
Formula
Millimeter of mercury to pound per square inch conversion table
| Millimeters of mercury | Pounds per square inch | Pounds per square inch | Millimeters of mercury |
|---|---|---|---|
| 1 mmHg | 0.019337 psi | 1 psi | 51.7149 mmHg |
| 2 mmHg | 0.038674 psi | 2 psi | 103.43 mmHg |
| 3 mmHg | 0.05801 psi | 3 psi | 155.14 mmHg |
| 5 mmHg | 0.096684 psi | 5 psi | 258.57 mmHg |
| 10 mmHg | 0.193368 psi | 10 psi | 517.15 mmHg |
| 20 mmHg | 0.386736 psi | 20 psi | 1034.3 mmHg |
| 50 mmHg | 0.966839 psi | 50 psi | 2585.75 mmHg |
| 100 mmHg | 1.9337 psi | 100 psi | 5171.49 mmHg |
| 500 mmHg | 9.6684 psi | 500 psi | 25857.46 mmHg |
| 1000 mmHg | 19.3368 psi | 1000 psi | 51714.93 mmHg |
To convert millimeters of mercury to pounds per square inch, divide the number of millimeters of mercury by 51.7149. One millimeter of mercury equals 0.019337 pounds per square inch, and one pound per square inch equals 51.7149 millimeters of mercury, so the relationship is fixed and exact. As a worked example, 10 mmHg comes to 0.193368 psi. 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 millimeter of mercury values already worked out in pounds per square inch, plus the reverse pound per square inch to millimeter of mercury direction, which is handy for quick reference or double-checking a result by hand.
Frequently asked questions
How many pounds per square inch are in a millimeter of mercury?
One millimeter of mercury equals 0.019337 pounds per square inch. The ratio is constant, so you can multiply any number of millimeters of mercury by 0.019337 to get pounds per square inch.
What is the formula to convert millimeters of mercury to pounds per square inch?
Use pounds per square inch = millimeters of mercury ÷ 51.7149. UnitGlide applies this exact formula for every value, so results stay accurate across the whole range.
How do I convert pounds per square inch back to millimeters of mercury?
Go the other way by using one pound per square inch equals 51.7149 millimeters of mercury. You can also press the swap button in the converter above to flip the direction in one click.
Is this millimeter of mercury to pound per square inch 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.