How do I convert PSI to Bar?

To convert PSI (psi) to Bar (bar), use the formula: 1 psi = 0.0689475729 bar. For example, 1 psi equals 0.068948 bar.

How many bar are in one psi?

There are 0.068948 bar in one psi (1 psi = 0.068948 bar).

What is the conversion formula for psi to bar?

The exact conversion formula is: 1 psi = 0.0689475729 bar. This converter uses this formula to give you an accurate result for any value you enter.

How do I convert bar back to psi?

Divide the bar value by 0.0689475729, or multiply by 14.5038. So 2 bar ≈ 29.01 psi. Typing in the bar field does this automatically.

What is a typical car tyre pressure in bar?

Many car tyres run around 30–35 psi, which is roughly 2.07–2.41 bar. Check the figure on your door pillar or in the manual for the exact recommended pressure.

Is bar the same as atmospheric pressure?

Close but not identical. One bar is 100,000 Pa, while standard atmospheric pressure at sea level is about 1.01325 bar (14.696 psi).

PSI to Bar Converter

Q: Is anything uploaded?

No — all calculations run entirely in your browser with no data sent to any server.

PSI to Bar Converter

This free pressure converter changes PSI (pounds per square inch) into bar and back again. PSI is the standard pressure unit in the US and for tyres, while bar is widely used in Europe and industry — so converting between them is a frequent need for tyres, pumps, diving and machinery.

How it works

The conversion uses one exact factor:

bar = psi × 0.0689475729
psi = bar ÷ 0.0689475729   (≈ bar × 14.5038)

Type a value in either field and the other updates in real time. Because the factor is exact, the only rounding is in how the result is displayed.

Example

Convert 30 psi (a common tyre pressure) to bar:

30 × 0.0689475729 ≈ 2.0684 bar

And the reverse, 2 bar to psi:

2 ÷ 0.0689475729 ≈ 29.01 psi

PSI (psi)	Bar (bar)
1 psi	0.068948 bar
15 psi	1.0342 bar
30 psi	2.0684 bar
100 psi	6.8948 bar

All calculations run entirely in your browser with no data sent to any server.