MeasureCalc

Convert Pascal (Pa) to Pounds per square inch (psi)

Category: Pressure

0.000145 psi

1 pa = 0.000145 psi

High-precision rounding: 6 decimals

How to convert pascal (pa) to pounds per square inch (psi)

Pressure is force per unit area. Pascals (and kPa, hPa) are SI, while bar and psi are widely used in engineering and scuba. Conversions must respect absolute vs gauge references when comparing values.

This converter calculates Pascal (Pa) to Pounds per square inch (psi) values by using the correct conversion rule for the Pressure category. For linear units, standardized factors are used. For temperature, the calculator applies the proper formula with offsets.

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Quick conversion table

Handy values for Pascal (Pa) to Pounds per square inch (psi). Click a value to open that exact result.

Pascal (Pa) Pounds per square inch (psi)
1 0.000145
0.5 7.3E-05
2.5 0.000363
10 0.00145

Conversion formula

Linear unit conversions use standardized factors; many are exact by definition (e.g., 1 in = 25.4 mm, 1 ft = 0.3048 m).

Common mistakes

  • Comparing gauge pressure (psig) with absolute pressure (psia/hPa) without converting reference.
  • Mixing bar with atm (1 atm = 1.01325 bar).

Unit facts

  • Pascal (Pa): Pascal (Pa) is the SI unit of pressure: 1 Pa = 1 N/m².
  • Pounds per square inch (psi): Pounds per square inch (psi) is common for tires, hydraulics, and scuba tanks (1 psi ≈ 6,894.76 Pa).

About Pascal (Pa)

Pascal (Pa)

SI unit equal to 1 N/m². Used for stress, tire pressure (kPa), and atmospheric science (hPa).

History: Named after Blaise Pascal; became practical with digital sensors capable of stable low-pressure readings.

About Pounds per square inch (psi)

Pounds per square inch (psi)

Imperial/US pressure unit. Common for tires, hydraulics, and compressors; often shown with gauge (psig) vs absolute (psia).

History: Industrial adoption in North America entrenched psi as a practical non-SI unit.

Frequently asked questions

How many Pounds per square inch (psi) are in one Pascal (Pa)?
1 Pascal (Pa) equals 0.000145 Pounds per square inch (psi).
Is Pascal (Pa) to Pounds per square inch (psi) conversion exact?
Many unit conversions are exact by definition, while others use standardized conversion constants.
What is the fastest way to convert Pascal (Pa) to Pounds per square inch (psi)?
Enter a value in Pascal (Pa), choose Pounds per square inch (psi) as the target unit, and the calculator will instantly return the result.

Convert Pascal (Pa) to other units

Convert other units to Pounds per square inch (psi)