Pressure Converter
Convert pressure between pascals, bar, atmospheres, PSI, mmHg and torr.
Pressure Converter
Convert pressure between pascals, bar, atmospheres, PSI, mmHg and torr.
How to use the Pressure Converter
- Enter the value.
- Select source and target units.
- Click Calculate.
Formula
1 atm = 101,325 Pa
1 bar = 100,000 Pa
1 PSI = 6894.757 Pa
Example
1 atm to PSI: 101325 / 6894.757 = 14.696 PSI.
Step-by-step calculation
- Convert to Pa: 1 atm = 101,325 Pa.
- Convert to PSI: 101,325 / 6894.757 = 14.696 PSI.
Real-world uses
- Tire pressure measurement.
- Weather and barometric readings.
- Industrial pressure systems.
Common mistakes
- Confusing PSI with PSF (per square foot).
- Using gauge vs absolute pressure.
- Mixing up mmHg and torr (they are nearly identical).
Frequently asked questions
What is standard atmospheric pressure?
1 atm = 101.325 kPa = 14.696 PSI = 760 mmHg = 1.01325 bar.
What is gauge vs absolute pressure?
Gauge pressure is relative to atmospheric. Absolute includes atmospheric. PSI usually means gauge.
Are mmHg and torr the same?
Nearly. 1 torr ≈ 1 mmHg. The difference is less than 0.000015%.