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Pressure Converter

Convert between pascals, bars, atmospheres, psi, and more

Conversion Formula:

Multiply by 14.696

Common Conversions

Common Pressure Reference Points

Atmospheric & Natural

  • • Standard atmospheric pressure at sea level: 101.325 kPa (1 atm)
  • • Atmospheric pressure at 10,000 ft altitude: 69 kPa (0.68 atm)
  • • Pressure at the deepest ocean point (Mariana Trench): 110 MPa (1,086 atm)
  • • Pressure at center of the Earth: ~360 GPa (3.55 million atm)
  • • Highest natural air pressure recorded on Earth: 108.6 kPa (1.07 atm)

Engineering & Mechanical

  • • Car tire pressure: 30-35 psi (207-241 kPa)
  • • Bicycle tire pressure: 40-100 psi (276-689 kPa)
  • • Typical pressure cooker: 15 psi (103 kPa) above atmospheric
  • • Hydraulic systems: 1,000-10,000 psi (6.9-69 MPa)
  • • Champagne bottle: 5-6 atm (507-608 kPa)

Medical & Scientific

  • • Normal human blood pressure: 120/80 mmHg (systolic/diastolic)
  • • High blood pressure (hypertension): >140/90 mmHg
  • • Laboratory vacuum: 0.001 atm (100 Pa)
  • • Ultra-high vacuum in scientific instruments: <10⁻⁹ torr
  • • Pressure for diamond formation: >4.5 GPa (44,400 atm)

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Visual Comparison

This gauge shows relative pressure levels on a logarithmic scale to handle a wide range of values.

*Red needle shows input pressure, green needle shows output pressure

Mobile tip: Swipe left or right on the unit dropdown to quickly change units, or use the arrow buttons

About the Pressure Converter

Convert between pascals, bars, atmospheres, psi, and more All conversions run instantly in your browser and nothing you enter is sent to a server.

Common Conversion Formulas

FromToFormula
Pascals (Pa)Pounds per square inch (psi)psi = Pa × 0.000145038
Bars (bar)Atmospheres (atm)atm = bar × 0.986923
Kilopascals (kPa)Millimeters of mercury (mmHg)mmHg = kPa × 7.50062

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