How to use the Pressure Converter
- Enter the value to convert.
- Choose the unit you have and the unit you want.
- Press Convert. The table below shows the value in every unit.
Formula
Every unit is defined by its exact size in pascals. To convert, multiply by the “from” factor and divide by the “to” factor.
| Unit | In pascals |
|---|---|
| Pascal (Pa) | 1 |
| Kilopascal (kPa) | 1,000 |
| Megapascal (MPa) | 1,000,000 |
| Bar | 100,000 |
| Millibar (mbar) | 100 |
| Atmosphere (atm) | 101,325 |
| Pound per sq inch (psi) | 6,894.75729317 |
| Millimetre of mercury (mmHg) | 133.322387415 |
| Inch of mercury (inHg) | 3,386.38864034 |
| Torr | 133.322368421 |
Examples
- 32 psi (car tyre) = 2.21 bar = 220.6 kPa.
- 1 atm = 1,013.25 mbar = 760 mmHg.
Frequently asked questions
Is tyre pressure gauge or absolute?
Tyre gauges read gauge pressure, above the surrounding air pressure. Convert the number directly.