Conversion factors for the pressure units people convert most often. For the reasoning behind these numbers, see Understanding Pressure Units.
| Unit | Pascal (Pa) | psi | Bar | Atm |
|---|---|---|---|---|
| 1 bar | 100,000 | 14.5038 | 1 | 0.9869 |
| 1 atmosphere (atm) | 101,325 | 14.6959 | 1.01325 | 1 |
| 1 psi | 6,894.76 | 1 | 0.0689 | 0.068 |
| 1 atm | also equals 760 mmHg (torr) | |||
The Pressure Converter converts between pascals, bar, psi, atmospheres, and more instantly.
Pressure Converter
Both measure pressure. 1 bar is about 14.5 psi. Bar is common in metric contexts and is close to standard atmospheric pressure; psi is common in the US, including for tire pressure.
101.325 kPa (1 atm) at sea level, equal to about 14.7 psi.
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