Pressure Converter
Convert pressure units instantly: pascal, hectopascal, kilopascal, megapascal, bar, millibar and more. Precise factors, all units shown at once.
| Unit | Value |
|---|---|
| pascal (Pa) | |
| hectopascal (hPa) | |
| kilopascal (kPa) | |
| megapascal (MPa) | |
| bar (bar) | |
| millibar (mbar) | |
| standard atmosphere (atm) | |
| torr (Torr) | |
| millimetre of mercury (mmHg) | |
| inch of mercury (inHg) | |
| pound per square inch (psi) | |
| kilopound per square inch (ksi) | |
| millimetre of water (mmH₂O) | |
| technical atmosphere (at) |
Tip: double-click a row to convert from that unit. Click a value to copy it. Expressions like 3*12 are accepted.
How to use the Pressure Converter
- Type the value you want to convert (expressions are allowed).
- Choose the unit you are converting from.
- Read the result in every other unit in the table — it updates as you type.
About this tool
Enter a value and choose its unit; the pressure is converted to all 14 supported units simultaneously. Conversions use exact definitions where they exist (e.g. 1 inch = 25.4 mm, 1 lb = 0.453 592 37 kg).
Common conversions
| 1 Pa = 0.01 hPa | 1 hPa = 100 Pa |
| 1 Pa = 0.001 kPa | 1 kPa = 1000 Pa |
| 1 Pa = 0.000001 MPa | 1 MPa = 1 000 000 Pa |
| 1 Pa = 0.00001 bar | 1 bar = 100 000 Pa |
| 1 Pa = 0.01 mbar | 1 mbar = 100 Pa |
| 1 Pa = 0.0000098692 atm | 1 atm = 101 325 Pa |