PSI to Millimetres of mercury Converter
Convert psi (psi) to millimetres of mercury (mmHg) instantly. Pressure conversions are used for tyre pressure (psi or bar), blood pressure readings in mmHg and weather maps in millibars.
Result
- Millimetres of mercury
- 51.7151 mmHg
How to use the psi to millimetres of mercury converter
- Enter the psi (psi).
- The results update as you type, or press Calculate.
- Read the millimetres of mercury first, then the supporting figures below it.
Formula
Millimetres of mercury = psi × 51.7150732812
Worked example
For example, with these inputs:
- PSI (psi): 1
the calculator returns:
- Millimetres of mercury: 51.7151 mmHg
PSI to Millimetres of mercury table
| PSI | Millimetres of mercury |
|---|---|
| 1 psi | 51.7151 mmHg |
| 2 psi | 103.4301 mmHg |
| 5 psi | 258.5754 mmHg |
| 10 psi | 517.1507 mmHg |
| 20 psi | 1,034.3 mmHg |
| 25 psi | 1,292.88 mmHg |
| 50 psi | 2,585.75 mmHg |
| 100 psi | 5,171.51 mmHg |
| 250 psi | 12,928.77 mmHg |
| 500 psi | 25,857.54 mmHg |
| 1,000 psi | 51,715.07 mmHg |
About this conversion
Pressure conversions are used for tyre pressure (psi or bar), blood pressure readings in mmHg and weather maps in millibars.
Writing the units next to every number while you work is the simplest way to avoid mistakes. If the units do not cancel to leave the one you want, the calculation is set up wrongly.
Unit conversion is simply multiplication by a fixed ratio. The ratio between two units of the same quantity never changes, so once you know it you can convert any value in either direction.
Frequently asked questions
How many millimetres of mercury are in one psi?
1 psi = 51.7151 mmHg.
How do I convert psi to mmHg?
Millimetres of mercury = psi × 51.7150732812.