Pressure Converter Online Tool

What is a Pressure Converter?

A Pressure Converter is a free utility that allows you to quickly convert pressure measurements from one unit to another, such as from Bar to PSI, or Pascals to Atmospheres.

How to use the Pressure Converter?

• Enter the pressure value you want to convert in the "From" input box.
• Select the unit of pressure you are converting from (e.g., Bar).
• Select the target unit you want to convert to (e.g., PSI).
• The converted pressure value will be calculated and displayed instantly.

What is PSI and where is it used?

PSI stands for "Pound-force per square inch". It is an imperial unit of pressure most commonly used in the United States. You will almost always see it used for measuring tire pressure, as well as in scuba diving, and for air compressors.

What is the difference between Bar and Atmosphere (atm)?

Both units are very similar in value, which can be confusing. **Standard Atmosphere (atm)** is a constant defined as the average atmospheric pressure at sea level (101,325 Pa). The **Bar** is a metric unit defined as exactly 100,000 Pa (Pascals). This makes 1 atm slightly larger than 1 bar (1 atm ≈ 1.01325 bar). Bar is commonly used in weather forecasting, while atm is often used in chemistry and physics.

What is a Pascal (Pa) and why is it used?

The Pascal (Pa) is the standard SI unit for pressure. It is defined as one newton of force per square meter. Because the Pascal is a very small unit of pressure (100,000 Pa = 1 Bar), it is more commonly used in its multiple forms, such as the **Kilopascal (kPa)**, which is 1,000 Pascals. Kilopascals are used in meteorology and engineering worldwide.