Converting from units of pounds per square inch to millibars? Use this psi to mbar pressure converterto make your calculations easier and more accurate!

Used to measure atmospheric pressures, **pounds per square inch** and **millibars** are useful units of measurement for pressure. While millibars are more internationally used in specific fields such as meteorology, pounds per square inch is a common pressure unit in the United States for different circumstances. View some more pressure converters and **convert pounds per square inch – millibar** easily with our tool above.

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

In the box above, enter a number of pounds per square inches you wish to change into millibars and click “convert” to be given a new amount by the **psi – mbar calculator**. For the opposite conversion, **convert millibars to pounds per square inch**.

## Formula to Convert psi – mbar

For the **conversion of psi to mbar**, you might be interested to know the mathematical formula used to convert these two units of pressure so we have included it below. As some examples, 7.5 psi = 517.1 mbar and 19 psi = 1,310 mbar

**[number of] pounds per square inch x 68.948 = [number of] millibars**

## What is psi?

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

## What are millibars?

As a subunit of the unit of pressure called bars, the **millibar** is equal to exactly one-thousandth of a bar. Scientists use the measure of millibars to identify the standard atmospheric pressure at sea level to be around 1,013 millibars. Millibars are used in meteorology and for weather forecasts written for the public. Try the **psi to mbar converter** for your calculations.

### How much is 1 Pound per square inch in Millibars?

**68.95 Millibars**

`(1psi = 68.95mbar)`

### How much are 2 Pounds per square inch in Millibars?

**137.9 Millibars**

`(2psi = 137.9mbar)`

### How much are 3 Pounds per square inch in Millibars?

**206.84 Millibars**

`(3psi = 206.84mbar)`

### How much are 4 Pounds per square inch in Millibars?

**275.79 Millibars**

`(4psi = 275.79mbar)`

### How much are 5 Pounds per square inch in Millibars?

**344.74 Millibars**

`(5psi = 344.74mbar)`

### How much are 10 Pounds per square inch in Millibars?

**689.48 Millibars**

`(10psi = 689.48mbar)`

### How much are 15 Pounds per square inch in Millibars?

**1034.21 Millibars**

`(15psi = 1034.21mbar)`

### How much are 20 Pounds per square inch in Millibars?

**1378.95 Millibars**

`(20psi = 1378.95mbar)`

### How much are 25 Pounds per square inch in Millibars?

**1723.69 Millibars**

`(25psi = 1723.69mbar)`

### How much are 30 Pounds per square inch in Millibars?

**2068.43 Millibars**

`(30psi = 2068.43mbar)`

### How much are 50 Pounds per square inch in Millibars?

**3447.38 Millibars**

`(50psi = 3447.38mbar)`

### How much are 100 Pounds per square inch in Millibars?

**6894.76 Millibars**

`(100psi = 6894.76mbar)`

### How much are 200 Pounds per square inch in Millibars?

**13789.51 Millibars**

`(200psi = 13789.51mbar)`

### How much are 500 Pounds per square inch in Millibars?

**34473.79 Millibars**

`(500psi = 34473.79mbar)`

### How much are 1000 Pounds per square inch in Millibars?

**68947.57 Millibars**

`(1000psi = 68947.57mbar)`