How do I convert psi to bar?

Divide psi by about 14.504 to get bar, since one bar is 14.5038 psi. So a 32 psi tyre is about 2.2 bar. The two are close enough that people sometimes treat 1 bar as roughly 14.5 psi for a quick estimate, but the converter gives the exact figure.

What is one atmosphere of pressure?

One standard atmosphere is 101,325 pascals, or about 1.013 bar, or 14.7 psi. It is roughly the air pressure at sea level, which is why it is a useful reference point for everything from weather to scuba diving.

How accurate are the conversions?

Each conversion uses the exact, internationally defined factor for the unit, not a rounded approximation, so the maths is precise. The result is shown to several significant figures and rounded only for display. For everyday and most professional use, the figures are exact to well beyond the precision you need.

Does this work offline and is anything sent to a server?

The conversion runs entirely in your browser, so nothing you type is sent anywhere, and once the page has loaded it keeps working with no connection. There is no sign-up and no limit on how many conversions you make.

Pressure Converter

Convert pressure between bar, psi, pascals, kilopascals, atmospheres, millimetres of mercury and torr. Type a value and see it in every unit at once, exactly. A free pressure converter that runs in your browser.

Exact, standard factors
100% free
No sign-up, no app
Instant as you type
Works offline after first load

Read the guide: How to Convert psi to bar

Convert

From

14.503774psi

1 bar = 14.503774 psi

1 bar in every unit

Pascal100,000 Pa

Kilopascal100 kPa

Bar1 bar

Pound per sq inch14.503774 psi

Atmosphere0.98692327 atm

Millimetre of mercury750.06158 mmHg

Torr750.06168 Torr

How to use it

1
Enter a value

Type the number you want to convert. The result updates as you type, with no button to press.
2
Pick the units

Choose what you are converting from and to. Swap them with one click if you need the reverse.
3
Read or copy

See the exact result, plus a table of your value in every unit. Copy any line you need.

When it comes in handy

Tyres and pumps

Convert a tyre pressure between psi and bar so you set it correctly at any garage.

Weather and altitude

Switch atmospheric pressure between hectopascals, millibars and inches or millimetres of mercury.

Engineering and science

Convert between pascals, bar and atmospheres for technical work and study.

Instant, exact & 100% in your browser

The conversion runs right here in your browser using exact, standard factors. Nothing you type is sent to a server, there is no sign-up and no limit, and once the page has loaded it keeps working even with no connection.

Frequently asked questions

How do I convert psi to bar?: Divide psi by about 14.504 to get bar, since one bar is 14.5038 psi. So a 32 psi tyre is about 2.2 bar. The two are close enough that people sometimes treat 1 bar as roughly 14.5 psi for a quick estimate, but the converter gives the exact figure.
What is one atmosphere of pressure?: One standard atmosphere is 101,325 pascals, or about 1.013 bar, or 14.7 psi. It is roughly the air pressure at sea level, which is why it is a useful reference point for everything from weather to scuba diving.
How accurate are the conversions?: Each conversion uses the exact, internationally defined factor for the unit, not a rounded approximation, so the maths is precise. The result is shown to several significant figures and rounded only for display. For everyday and most professional use, the figures are exact to well beyond the precision you need.
Does this work offline and is anything sent to a server?: The conversion runs entirely in your browser, so nothing you type is sent anywhere, and once the page has loaded it keeps working with no connection. There is no sign-up and no limit on how many conversions you make.