Pressure is the force applied per unit area. In the SI system, the unit of pressure is the pascal (Pa).

How do I convert pascals to bar?

1 bar = 100,000 Pa. To convert pascals to bar, divide the value in Pa by 100,000.

How do I convert psi to pascals?

1 psi = 6,894.76 Pa. To convert psi to pascals, multiply the value in psi by 6,894.76.

What is the difference between atmosphere and bar?

One atmosphere (atm) is 101,325 Pa, while one bar is 100,000 Pa. The atmosphere is slightly larger than the bar.

A torr is a unit of pressure equal to 1/760 of an atmosphere, or about 133.322 Pa.

What are the most commonly used pressure units?

The most commonly used units are pascal (Pa), bar, atmosphere (atm), psi, torr, and millimeter of mercury (mmHg).

Pressure Converter

Convert any pressure unit quickly and accurately. Whether you need to convert pascals to bars, psi to atmospheres, or torr to mmHg, our tool gives you instant results, clear explanations, and helpful tables – all in one place.

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How to Use the Pressure Converter

Enter the value you want to convert.
Select the original unit (From) and the target unit (To).
See the result instantly, along with a human-readable explanation.

This tool supports all major pressure units: pascal, kilopascal, bar, psi, atmosphere, torr, and more.

Popular Pressure Conversions

From	To	Formula
Pascals (Pa)	Bar	Pa ÷ 100,000
Bar	Pascals (Pa)	bar × 100,000
Pascals (Pa)	psi	Pa × 0.000145038
psi	Pascals (Pa)	psi × 6,894.76
Pascals (Pa)	Atmospheres (atm)	Pa ÷ 101,325
Atmospheres (atm)	Pascals (Pa)	atm × 101,325
Pascals (Pa)	Torr	Pa × 0.00750062
Torr	Pascals (Pa)	Torr × 133.322

Pressure Units Explained

What is a Pascal?

The pascal (Pa) is the SI unit of pressure, defined as one newton per square meter.

What is a Bar?

A bar is a metric unit of pressure, equal to 100,000 pascals.

What is psi?

psi (pounds per square inch) is a unit of pressure used in the US and UK, equal to about 6,894.76 pascals.

What is an Atmosphere?

An atmosphere (atm) is a unit of pressure defined as 101,325 pascals, roughly equal to the average atmospheric pressure at sea level.

What is a Torr?

A torr is a unit of pressure defined as 1/760 of an atmosphere, or about 133.322 pascals.

FAQ – Pressure Conversion

What is pressure?: Pressure is the force applied per unit area. In the SI system, the unit of pressure is the pascal (Pa).
How do I convert pascals to bar?: 1 bar = 100,000 Pa. To convert pascals to bar, divide the value in Pa by 100,000.
How do I convert psi to pascals?: 1 psi = 6,894.76 Pa. To convert psi to pascals, multiply the value in psi by 6,894.76.
What is the difference between atmosphere and bar?: One atmosphere (atm) is 101,325 Pa, while one bar is 100,000 Pa. The atmosphere is slightly larger than the bar.
What is a torr?: A torr is a unit of pressure equal to 1/760 of an atmosphere, or about 133.322 Pa.
What are the most commonly used pressure units?: The most commonly used units are pascal (Pa), bar, atmosphere (atm), psi, torr, and millimeter of mercury (mmHg).