Need to convert an amount of pressure measured in pounds per square inch into torrs? Use this accurate and simple Osi to Torr converter. More available.

As two important units of pressure, **Torr** and **pounds per square inch** are used to calculate pressures in science and different industries. Psi has several variations for also measuring pressures that are relative in a vacuum, however, both Torr and psi are most commonly used for ambient **atmospheric pressures**. This is a **pounds per square inch to torr converter**, if you need to convert different units then take a look at our other pressure converters.

## How to use the Converter from Psi to Torr?

In the box above, enter a number of pounds per square inch into our **psi to torr calculator** and click “convert” to be given a new quantity in units of Torr. For the opposite calculation, **convert Torr to psi**.

## Formula to Convert psi – torr

For the mathematical equation behind this **pounds per square inch – torr conversion**, we have provided it below so that you can use it for doing the conversion yourself should you need to. For instance, 15 psi = 775.7 Torr and 21 psi = 1,086 Torr

**[number of] pounds per square inch x 51.7419 = [number of] Torr**

## What is psi?

More accurately known as pound-force per square inch, **p****si** is a unit of pressure defined by a force of one pound on an area of one square inch. Other abbreviations of this unit include lbf/in² and lbf/sq in. The psi measurement is most commonly found to be used in the US and can be used to measure atmospheric pressure in certain circumstances. Try our **psi to torr converter**.

## What are Torrs?

The **torr** was historically seen to be equal to one millimetre of mercury, however, since the revision of the units of pressure, this has changed. It is named after an Italian mathematician and physicist who worked on the principles of the barometer. Units of Torr have many prefixes, such as the millitorr (mTorr). Use our **psi – torr converter** above.

### How many is 1 Pound per square inch in Torrs?

**51.71 Torrs**

`(1psi = 51.71Torr)`

### How many are 2 Pounds per square inch in Torrs?

**103.43 Torrs**

`(2psi = 103.43Torr)`

### How many are 3 Pounds per square inch in Torrs?

**155.14 Torrs**

`(3psi = 155.14Torr)`

### How many are 4 Pounds per square inch in Torrs?

**206.86 Torrs**

`(4psi = 206.86Torr)`

### How many are 5 Pounds per square inch in Torrs?

**258.57 Torrs**

`(5psi = 258.57Torr)`

### How many are 10 Pounds per square inch in Torrs?

**517.15 Torrs**

`(10psi = 517.15Torr)`

### How many are 15 Pounds per square inch in Torrs?

**775.72 Torrs**

`(15psi = 775.72Torr)`

### How many are 20 Pounds per square inch in Torrs?

**1034.3 Torrs**

`(20psi = 1034.3Torr)`

### How many are 25 Pounds per square inch in Torrs?

**1292.87 Torrs**

`(25psi = 1292.87Torr)`

### How many are 30 Pounds per square inch in Torrs?

**1551.45 Torrs**

`(30psi = 1551.45Torr)`

### How many are 50 Pounds per square inch in Torrs?

**2585.75 Torrs**

`(50psi = 2585.75Torr)`

### How many are 100 Pounds per square inch in Torrs?

**5171.49 Torrs**

`(100psi = 5171.49Torr)`

### How many are 200 Pounds per square inch in Torrs?

**10342.99 Torrs**

`(200psi = 10342.99Torr)`

### How many are 500 Pounds per square inch in Torrs?

**25857.47 Torrs**

`(500psi = 25857.47Torr)`

### How many are 1000 Pounds per square inch in Torrs?

**51714.93 Torrs**

`(1000psi = 51714.93Torr)`