PSI to Standard Atmosphere Converter

Convert between pounds per square inch and standard atmospheres for pressure measurements, tire pressure, and engineering applications

PSI (pounds per square inch)

1 psi = 0.068046 atm

Standard Atmosphere (atm)

1 atm = 14.696 psi

Enter a value to see the conversion result

Pressure Conversion Reference

PSI	⇔	Atmosphere
1 psi	⇔	0.068 atm
14.696 psi	⇔	1 atm
30 psi	⇔	2.04 atm
50 psi	⇔	3.40 atm
100 psi	⇔	6.80 atm
147 psi	⇔	10 atm

Pressure Applications

Common PSI Values:
• Car tire: 30-35 psi
• Bicycle tire: 30-130 psi
• Air compressor: 90-150 psi
• Water pressure: 40-80 psi

Atmospheric Reference:
• Sea level: 1 atm (14.696 psi)
• 10,000 ft altitude: 0.69 atm
• Deep ocean (10m): 2 atm
• Pressure cooker: 1.5-2 atm

Industrial Applications:
• Hydraulic systems: 1,000-5,000 psi
• Steam boilers: 15-250 psi
• Gas cylinders: 2,000-3,000 psi
• Scuba tanks: 3,000 psi

Pressure Units

PSI: Pounds per square inch
Atmosphere: Standard atmospheric pressure
Conversion: 1 atm = 14.696 psi
Standard: Sea level, 15°C

Measurement Tips

PSI common in US systems
Atmosphere for scientific work
Consider gauge vs absolute
Temperature affects pressure

Applications

Automotive: Tire pressure
HVAC: System pressure
Industrial: Process control
Scientific: Atmospheric studies