1 millimeter of mercury to PSI
1 mmHg = 0.01933678 psi. Change the amount below, or read the formula and the reference table further down.
1 millimeter of mercury equals
PSI
1 mmHg = 0.01933678 psi
The formula
Millimeters of mercury and PSI both measure pressure from the same zero, so a single multiplier does the job.
psi = mmHg × 0.0193367775
Going the other way? Convert PSI to millimeters of mercury.
Millimeters of mercury to PSI table
Values either side of 1 mmHg.
| Millimeters of mercury (mmHg) | PSI (psi) |
|---|---|
| -4 | -0.077347 |
| -3.5 | -0.067679 |
| -3 | -0.05801 |
| -2.5 | -0.048342 |
| -2 | -0.038674 |
| -1.5 | -0.029005 |
| -1 | -0.019337 |
| -0.5 | -0.009668 |
| 0 | 0 |
| 0.5 | 0.009668 |
| 1 | 0.019337 |
| 1.5 | 0.029005 |
| 2 | 0.038674 |
| 2.5 | 0.048342 |
| 3 | 0.05801 |
| 3.5 | 0.067679 |
| 4 | 0.077347 |
| 4.5 | 0.087015 |
| 5 | 0.096684 |
| 5.5 | 0.106352 |
| 6 | 0.116021 |
Questions people ask
- How many PSI are in a millimeter of mercury?
- One millimeter of mercury equals 0.0193367775 PSI.
- How do I convert millimeters of mercury to PSI by hand?
- Multiply the number of millimeters of mercury by 0.0193367775. For a rough check, 0.019 is close enough for most everyday use.
- What is 1 millimeter of mercury in PSI?
- 1 millimeter of mercury is 0.01933678 PSI.
Calcuit generates this page from a unit table, so the factors here match every other page on the site.