Pressure Converter
Convert between pascals, kilopascals, megapascals, bar, atmospheres, PSI, and Torr (mmHg). Used in engineering, meteorology, medicine, and physics.
1 Pascal (Pa) = 0.001 Kilopascal (kPa)
1 Pascal (Pa) in all units
| Unit | Value |
|---|---|
| Pascal (Pa)input | 1 |
| Kilopascal (kPa) | 0.001 |
| Megapascal (MPa) | 0.000001 |
| Bar | 0.00001 |
| Atmosphere (atm) | 0.000009869232667 |
| PSI | 0.0001450376808 |
| Torr / mmHg | 0.007500637554 |
How to Use the Pressure Converter
- 1
Select the pressure unit you want to convert FROM (e.g. PSI).
- 2
Enter the numeric value.
- 3
Select the unit you want to convert TO (e.g. bar).
- 4
The result appears instantly.
- 5
Use the ⇄ swap button to reverse.
- 6
See all units in the table below.
Pressure Conversion Formulas
1 atm = 101,325 Pa = 1.01325 bar = 14.6959 PSI
1 bar = 100,000 Pa = 0.986923 atm
1 PSI = 6,894.76 Pa
1 Torr = 133.322 Pa = 1 mmHgFrequently Asked Questions
What is standard atmospheric pressure?
Standard atmospheric pressure (1 atm) = 101,325 Pa = 1.01325 bar = 14.6959 PSI = 760 Torr.
What is PSI?
PSI stands for pounds per square inch. 1 PSI = 6,894.76 Pa. It is commonly used for tyre pressure, hydraulics, and gas cylinders in the US.
What is the difference between bar and atm?
1 bar = 100,000 Pa. 1 atm = 101,325 Pa. They are very close but not equal. Bar is used in meteorology and engineering; atm is used in chemistry.
What is Torr / mmHg?
1 Torr = 1 mmHg = 133.322 Pa. It is used in medicine (blood pressure) and vacuum technology.