PSI to Torr Converter (psi to Torr)

How to Convert PSI to Torr

Formula: Torr = PSI × 51.71509578

Example: 1 psi = 51.71509578 Torr

You can also use the interactive converter above. Simply enter any PSI value and the equivalent Torr value will appear instantly. Click the ⇄ button to reverse the conversion.

Here is a closer look at what PSI and Torr are used for, plus answers to the questions people ask most about this conversion.

Step-by-step example — Convert 30 psi to Torr:

What is PSI and Torr?

PSI (pounds per square inch) is the imperial pressure unit used throughout the US for everyday pressure measurement.

A Torr is a pressure unit based on the height of a mercury column, historically tied to barometer readings.

Real World Uses of PSI to Torr Conversion

• PSI: Commonly used for stating car and bicycle tire pressure in the US.
• Torr: Commonly used for measuring vacuum levels in scientific and industrial equipment.
• PSI: Commonly used in the US for car and bicycle tyre pressure.
• Torr: Commonly used in vacuum technology and laboratory equipment to measure low pressures.

Frequently Asked Questions

What is the formula to convert PSI to Torr?

The formula is: Torr = PSI x 51.71509578. Multiply any PSI value by 51.71509578 to get the equivalent in Torr.

What is 1 PSI in Torr?

1 psi = 51.71509578 Torr.

How many PSI are in 1 Torr?

1 Torr = 0.0193367136793883 psi.

Is PSI bigger or smaller than Torr?

PSI is bigger than Torr. 1 PSI = 51.71509578 Torr.

What is 50 psi in Torr?

50 psi = 2,585.754789 Torr.

What is 100 Torr in psi?

100 Torr = 1.933671368 psi.

Why does the US use PSI instead of bar?

PSI (pounds per square inch) fits the imperial system already used in the US for weight and length, so it became the standard pressure unit for American cars, tools and equipment.