MeasureCalc

Convert Standard atmosphere (atm) to Pounds per square inch (psi)

Category: Pressure

14.695949 psi

1 atm = 14.695949 psi

Precision: 6 decimals; very small non-zero results use significant digits.

How to convert standard atmosphere (atm) 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.

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Quick conversion table

Handy values for Standard atmosphere (atm) to Pounds per square inch (psi). Click a value to calculate that result.

Standard atmosphere (atm) Pounds per square inch (psi)
14.695949
7.347974
36.739872
146.959488

Conversion formula

Use the following formula:

Pounds per square inch (psi) ≈ Standard atmosphere (atm) × 14.695948775514

Convert pressure from Standard atmosphere (atm) to Pounds per square inch (psi) using a fixed unit ratio. Round only the final result.

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

  • Standard atmosphere (atm): Standard atmosphere is exactly 101,325 Pa; reference pressure in chemistry and physics.
  • 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 Standard atmosphere (atm)

Standard atmosphere (atm)

Exactly 101,325 Pa. Reference pressure for chemistry and gas laws; useful for normalizing conditions.

History: A conventional unit set for convenience in calculations and comparative tables.

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 Standard atmosphere (atm)?
1 Standard atmosphere (atm) equals 14.695949 Pounds per square inch (psi).
Is Standard atmosphere (atm) 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 Standard atmosphere (atm) to Pounds per square inch (psi)?
Enter a value in Standard atmosphere (atm), choose Pounds per square inch (psi) as the target unit, and the calculator will instantly return the result.

Convert Standard atmosphere (atm) to other units

Convert other units to Pounds per square inch (psi)