Pressure Converter

Convert pressure between pascal, bar, psi, atm, and other pressure units.

Convert Units

Convert pressure measurements between different units including pascal, bar, psi, atmosphere, torr, and more with our professional pressure converter.

What is Pressure Converter?

Pressure is the force applied perpendicular to the surface of an object per unit area.

Understanding the Units

Pascal (Pa)

SI unit of pressure. One pascal equals one newton per square meter.

Common Uses: Scientific measurements

Bar

Metric unit approximately equal to atmospheric pressure.

Common Uses: Weather, tire pressure in Europe

Conversion: 1 bar = 100,000 Pa

Pounds per Square Inch (PSI)

Imperial unit of pressure.

Common Uses: Tire pressure in US, hydraulics

Conversion: 1 PSI = 6,895 Pa

Atmosphere (atm)

Standard atmospheric pressure at sea level.

Common Uses: Diving, chemistry

Conversion: 1 atm = 101,325 Pa = 14.7 PSI

Common Conversions

  • Car tire: 32 PSI = 2.2 bar
  • Sea level atmosphere: 1 atm = 101.3 kPa = 14.7 PSI
  • Scuba tank: 200 bar = 2,900 PSI
  • Bicycle tire (road): 80–120 PSI = 5.5–8.3 bar

Conversion Formulas

  • Pressure = Force ÷ Area (P = F/A)
  • PSI to bar: bar = PSI × 0.0689
  • Bar to PSI: PSI = bar × 14.504
  • Pascal to bar: bar = Pa ÷ 100,000
  • Atmosphere to Pascal: Pa = atm × 101,325

Practical Examples

Car tire: 32–35 PSI = 2.2–2.4 bar (typical recommended pressure)

Bicycle tire (road): 80–120 PSI = 5.5–8.3 bar

Blood pressure: ~120/80 mmHg = 16/10.7 kPa (systolic/diastolic)

Scuba diving at 30 m depth: ~4 atm = 400 kPa = 58 PSI

When to Use Each Unit

Pascal/kPa: Scientific measurements, meteorology, SI standard
Bar: Industry, European tyre pressure, weather stations
PSI: Tyre pressure in the US, hydraulics, American standards
Atmosphere (atm): Diving, chemistry, general scientific context

Related Tools

Discover more tools that might interest you. Here are some related and popular tools you might find useful!

Advertisement
Advertisement

Comments

Sign in or create an account to leave a comment.

No comments yet

Be the first to share your thoughts!