How do I convert Torr to Pounds per square inch (psi)?

1 torr equals 0.019337 psi using SI-based conversion and precise factors.

What is the formula to convert Torr to Pounds per square inch (psi)?

This is a linear unit conversion using a constant factor between units.

How can I share a direct torr to psi result?

Use the shareable URL: https://measurecalc.com/convert/torr-to-psi

Convert Torr to Pounds per square inch (psi)

Q: Is Torr to Pounds per square inch (psi) conversion exact?

Yes, it uses exact definitions or standardized constants (e.g., 1 in = 25.4 mm).

Category: Pressure

Value From To Precision

0.019337 psi

1 torr = 0.019337 psi

High-precision rounding: 6 decimals

How to convert torr 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 Torr 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 Torr to Pounds per square inch (psi). Click a value to open that exact result.

Torr	Pounds per square inch (psi)
1	0.019337
0.5	0.009668
2.5	0.048342
10	0.193368

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

Torr: Torr is ≈133.322368 Pa; named after Torricelli (barometer). Used in vacuum science.
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 Torr

Torr

≈133.322 Pa. Preferred in high-vacuum work alongside millitorr and microns.

History: Named after Torricelli; bridges historical millimeters of mercury (mmHg) with SI pascals.

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 Torr?

1 Torr equals 0.019337 Pounds per square inch (psi).

Is Torr 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 Torr to Pounds per square inch (psi)?

Enter a value in Torr, choose Pounds per square inch (psi) as the target unit, and the calculator will instantly return the result.

Convert Torr to other units

torr → bar Bar
torr → pa Pascal (Pa)
torr → atm Standard atmosphere (atm)

Convert other units to Pounds per square inch (psi)

bar → psi Bar
pa → psi Pascal (Pa)
atm → psi Standard atmosphere (atm)