Pressure Converter
Convert between pascals, PSI, bar, atmospheres, and other pressure units.
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1 Standard Atmospheres (atm) =
14.69594878
Pounds/Sq Inch (psi)
1 Standard Atmospheres (atm) in every unit
- Pascals (Pa)
- 101,325
- Hectopascals / millibar (hPa)
- 1,013.25
- Kilopascals (kPa)
- 101.325
- Megapascals (MPa)
- 0.101325
- Bars (bar)
- 1.01325
- Pounds/Sq Inch (psi)
- 14.69594878
- Standard Atmospheres (atm)
- 1
- Torr
- 760
- Millimeters of Mercury (mmHg)
- 759.9998917
- Inches of Mercury (inHg)
- 29.9212524
- Kilograms-force/Sq Cm (kgf/cm²)
- 1.033227453
Pressure References
1 atmosphere = 14.696 psi
1 bar = 14.504 psi
1 atmosphere = 1.01325 bar
1 psi = 6,894.76 Pa
Common Pressures
Car tire: 32-35 psi
Bicycle tire: 80-130 psi
Scuba tank: 200+ bar
Sea level air: 1 atm (14.7 psi)
How to use the Pressure
Enter a pressure value, select the current unit (pascals, PSI, bar, atmospheres, etc.), choose your target unit, and get instant conversion. Used for tire pressure, weather, diving, and industrial applications.
Formula
All pressure values convert through pascals (base SI unit). value_in_pa = input × from_factor; result = value_in_pa ÷ to_factor.
History & interesting facts
Did you know?
PSI (pounds per square inch) is common in the USA. 1 atmosphere = 14.696 psi, which is standard air pressure at sea level.
Origin & history
The pascal (Pa) is the SI unit of pressure. Atmospheric pressure at sea level is 101,325 Pa (1 atmosphere).
Fascinating facts
- 1
1 atmosphere = 101,325 Pa = 14.696 psi = 1.01325 bar
- 2
Car tire pressure: 32-35 psi typical
- 3
Bicycle tire pressure: 80-130 psi typical
- 4
Scuba diving: Measured in bar or atmospheres
- 5
Weather: Reported in millibars or inches of mercury
- 6
Industrial: Often measured in bar or psi
Frequently asked questions
What is standard atmospheric pressure?
Standard atmospheric pressure at sea level is 101,325 Pa, 1 atmosphere, 14.696 psi, or 1.01325 bar.
What should my car tire pressure be?
Most cars need 32-35 psi. Check your vehicle's door jamb or manual for exact specifications.
How many psi is 1 bar?
1 bar = 14.5038 psi. Approximately 14.5 psi, making bar conversions straightforward.