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Convert bar to kilopascals
Instant, accurate bar → kPa conversion with a live converter, table and formula.
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1 bar = 100 kilopascals
1 kilopascal = 0.01 bar
bar to kilopascals table
| bar (bar) | kilopascals (kPa) |
|---|---|
| 0.5 | 50 |
| 1 | 100 |
| 2 | 200 |
| 5 | 500 |
| 10 | 1000 |
| 20 | 2000 |
| 50 | 5000 |
| 100 | 10000 |
| 500 | 50000 |
| 1000 | 100000 |
Formula
kilopascals = bar × 100.
Example
10 bar = 1000 kilopascals.
What is a bar?
A bar is 100,000 pascals — close to average sea-level air pressure.
What is a kilopascal?
A kilopascal (kPa) is 1,000 pascals; tire pressure is often given in kPa.
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 | kilopascals |
|---|---|---|
| Atmosphere (sea level) | 1.01 bar | 101 kPa |
| Car tire (32 psi) | 2.21 bar | 221 kPa |
| Road-bike tire (80 psi) | 5.52 bar | 552 kPa |
| Espresso extraction (9 bar) | 9 bar | 900 kPa |
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 kilopascals in a bar?+
1 bar = 100 kilopascals.
How do I convert bar to kilopascals?+
Enter the value in the bar box above and the kilopascals value appears instantly. You can also type in the kilopascals box to convert the other way.
Is this bar to kPa converter free?+
Yes — it is 100% free, needs no sign-up, and runs entirely in your browser.