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Convert bar to psi
Instant, accurate bar → psi conversion with a live converter, table and formula.
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1 bar = 14.5038 psi
1 psi = 0.0689476 bar
bar to psi table
| bar (bar) | psi (psi) |
|---|---|
| 0.5 | 7.25189 |
| 1 | 14.5038 |
| 2 | 29.0075 |
| 5 | 72.5189 |
| 10 | 145.038 |
| 20 | 290.075 |
| 50 | 725.189 |
| 100 | 1450.38 |
| 500 | 7251.89 |
| 1000 | 14503.77 |
Formula
psi = bar × 14.5038.
Example
10 bar = 145.038 psi.
What is a bar?
A bar is 100,000 pascals — close to average sea-level air pressure.
What is a psi?
Pounds per square inch (psi) is the imperial pressure unit (tires, etc.).
Real-world reference points
Sea-level air is ~1 bar (14.7 psi); car tires run ~2.2 bar (32 psi); espresso machines ~9 bar.
| Reference | bar | psi |
|---|---|---|
| Atmosphere (sea level) | 1.01 bar | 14.7 psi |
| Car tire (32 psi) | 2.21 bar | 32 psi |
| Road-bike tire (80 psi) | 5.52 bar | 80 psi |
| Espresso extraction (9 bar) | 9 bar | 131 psi |
Mistakes to avoid with pressure conversions
- Mixing gauge and absolute pressure: tire gauges read pressure ABOVE atmospheric (psig), not absolute (psia).
- Inflating tires to the sidewall maximum instead of the door-jamb recommendation.
- Confusing bar with psi — a 2.2 vs 32 mixup is a dangerous under/over-inflation.
Frequently asked questions
How many psi in a bar?+
1 bar = 14.5038 psi.
How do I convert bar to psi?+
Enter the value in the bar box above and the psi value appears instantly. You can also type in the psi box to convert the other way.
Is this bar to psi converter free?+
Yes — it is 100% free, needs no sign-up, and runs entirely in your browser.