Convert Torr to Pounds per Square Inch (psi)

Enter a value below to convert Torr to Pounds per Square Inch (psi).

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Conversion:

1 Torr = 0.019336713678 Pounds per Square Inch (psi)

How to Convert Torr to Pounds per Square Inch (psi)

1 torr = 0.019336713678 psi

1 psi = 51.715095783 torr

Example: convert 15 Torr to Pounds per Square Inch (psi):

25 torr = 0.48341784196 psi

Torr to Pounds per Square Inch (psi) Conversion Table

TorrPounds per Square Inch (psi)
0.01 torr0.00019336713678 psi
0.1 torr0.0019336713678 psi
1 torr0.019336713678 psi
2 torr0.038673427356 psi
3 torr0.058010141035 psi
5 torr0.096683568391 psi
10 torr0.19336713678 psi
20 torr0.38673427356 psi
50 torr0.96683568391 psi
100 torr1.9336713678 psi
1000 torr19.336713678 psi

Torr

Definition

A torr is a unit of pressure equal to 1/760 of a standard atmosphere, or approximately 133.322 pascals. It is nearly equivalent to one millimeter of mercury (mmHg).

History

The torr was named after Evangelista Torricelli, the Italian physicist who invented the mercury barometer in 1644. It was defined to provide a convenient way to express vacuum and low-pressure measurements.

Current use

Torr is widely used in vacuum science, semiconductor manufacturing, and laboratory settings for measuring low pressures. It remains a standard unit in physics and materials processing.

Pounds per Square Inch (psi)

Definition

Pounds per square inch (psi) is an imperial unit of pressure equal to the force of one pound-force applied to an area of one square inch. It equals approximately 6,894.76 pascals.

History

PSI evolved from the British imperial system and became the dominant pressure unit in American and British engineering. It gained widespread use with the industrialization of pneumatic and hydraulic systems.

Current use

PSI is the primary pressure unit in the United States for tire pressure, water pressure, hydraulic systems, compressed gas cylinders, and HVAC systems. It is also widely used in oil and gas industries.