Psi to Mmhg ConverterRight in Your Browser
Convert pounds per square inch (psi) to millimeters of mercury (mmHg). Psi (pounds per square inch) is the US pressure unit for tires, air compressors and plumbing. The millimeter of mercury (mmHg) survives from mercury barometers — still the unit of blood pressure and vacuum work. Everything is calculated locally in your browser — no server, and it works offline.
51.7149 mmHg
in millimeters of mercury (millimeter of mercury)
To convert pounds per square inch to millimeters of mercury, multiply the pound per square inch value by 51.7149.
Switch to Mmhg to PsiPsi to Mmhg Chart
| Pounds per square inch (psi) | Millimeters of mercury (mmHg) |
|---|---|
| 1 | 51.7149 |
| 2 | 103.43 |
| 3 | 155.145 |
| 4 | 206.86 |
| 5 | 258.575 |
| 10 | 517.149 |
| 20 | 1034.3 |
| 50 | 2585.75 |
| 100 | 5171.49 |
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 (1 psi = 51.7149 mmHg). So to go from pounds per square inch to millimeters of mercury, multiply the pound per square inch value by 51.7149.
What is the formula to convert pounds per square inch to millimeters of mercury?
To convert pounds per square inch to millimeters of mercury, multiply the pound per square inch value by 51.7149. For example, 10 psi is 517.149 mmHg.
What is 32 pounds per square inch in millimeters of mercury?
32 pounds per square inch — typical car tire pressure — is 1654.88 millimeters of mercury. The converter above works for any value, entirely in your browser.
Is the pound per square inch to millimeter of mercury conversion exact?
The factor used here is the defined value: 1 psi = 51.7149252 mmHg. Results are rounded to six significant digits for readability, so for high-precision work use the full factor.
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