How to convert PSI to bar
To convert PSI to bar, multiply by 0.0689475729317. Pressure conversions are used for tire inflation, weather, scuba diving, hydraulics and medical devices.
PSI to Bar conversion table
| PSI (psi) | Bar (bar) |
|---|---|
| 0.1 psi | 0.00689475729317 bar |
| 0.5 psi | 0.0344737864658 bar |
| 1 psi | 0.0689475729317 bar |
| 2 psi | 0.137895145863 bar |
| 3 psi | 0.206842718795 bar |
| 4 psi | 0.275790291727 bar |
| 5 psi | 0.344737864658 bar |
| 10 psi | 0.689475729317 bar |
| 20 psi | 1.37895145863 bar |
| 25 psi | 1.72368932329 bar |
| 50 psi | 3.44737864658 bar |
| 100 psi | 6.89475729317 bar |
| 500 psi | 34.4737864658 bar |
| 1,000 psi | 68.9475729317 bar |
About the units
PSI (psi)
Pounds per square inch is the US unit for tire, air compressor and hydraulic pressure.
Bar (bar)
A bar equals exactly 100,000 pascals, close to atmospheric pressure at sea level.
How to use this converter
- Type the number of PSI (psi) in the input box.
- The result in bar appears instantly — no button needed.
- See the same value in every other pressure unit just below.
- Use “Swap units” to convert bar back to PSI.
Tips for better results
- Double-check which system a unit belongs to (for example US vs UK gallons).
- Use the swap button to convert in the opposite direction instantly.
- Bookmark the conversions you use most — each pair has its own page.
Frequently asked questions
How many bar are in one psi?
One psi equals 0.0689475729317 bar. 0.0689475729317 is the exact factor used by this converter.
How do I convert PSI to bar?
Multiply the value in PSI by 0.0689475729317. To go the other way, multiply bar by 14.503773773.
What is 10 psi in bar?
10 psi = 0.689475729317 bar. Also, 5 psi = 0.344737864658 bar and 100 psi = 6.89475729317 bar.
What is the difference between a psi and a bar?
Pounds per square inch is the US unit for tire, air compressor and hydraulic pressure. A bar equals exactly 100,000 pascals, close to atmospheric pressure at sea level.
Is this tool free and private?
Yes — the PSI to Bar is completely free with no sign-up, and it runs entirely in your browser, so the values you enter are never uploaded to our servers.
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