How to convert kilopascals to bar
One kilopascal equals 0.01 bar, so multiply the number of kilopascals by 0.01:
bar = kPa × 0.01
kPa = bar ÷ 0.01 (1 bar = 100 kPa)
Example: 100 kPa → 100 × 0.01 = 1 bar.
Going the other way, divide by 0.01, or multiply by 100; the bar to kilopascals converter does it for you.
Everyday values
| Kilopascals | Bar | For example |
|---|---|---|
| 100 kPa | 1 bar | 1 bar |
| 101.3 kPa | 1.013 bar | atmospheric pressure |
| 220 kPa | 2.2 bar | a typical car tyre |
| 250 kPa | 2.5 bar | a loaded car tyre |
When you need this conversion
Divide kilopascals by 100 to get bar. 230 kPa on a door-frame sticker is 2.3 bar or about 33 psi.
Kilopascal to bar conversion table
| kPa | bar | kPa | bar |
|---|---|---|---|
| 50 kPa | 0.5 bar | 550 kPa | 5.5 bar |
| 100 kPa | 1 bar | 600 kPa | 6 bar |
| 150 kPa | 1.5 bar | 650 kPa | 6.5 bar |
| 200 kPa | 2 bar | 700 kPa | 7 bar |
| 250 kPa | 2.5 bar | 750 kPa | 7.5 bar |
| 300 kPa | 3 bar | 800 kPa | 8 bar |
| 350 kPa | 3.5 bar | 850 kPa | 8.5 bar |
| 400 kPa | 4 bar | 900 kPa | 9 bar |
| 450 kPa | 4.5 bar | 950 kPa | 9.5 bar |
| 500 kPa | 5 bar | 1,000 kPa | 10 bar |
About the units
- Kilopascal (kPa): 1,000 pascals.
- Bar (bar): exactly 100,000 pascals, close to atmospheric pressure at sea level.
Both are units of pressure. The conversion factor comes from the exact definitions above, so the calculator is exact; results are only rounded for display (up to six significant digits).
Frequently asked questions
How many bar are in one kilopascal?
One kilopascal is 0.01 bar. One bar is 100 kilopascals.
How do I convert kilopascals to bar?
Multiply the value in kilopascals by 0.01. To go back, divide by 0.01.
What is 100 kPa in bar?
100 kPa = 1 bar.
What is 101.3 kPa in bar?
101.3 kPa = 1.013 bar.
Sources
- NIST Special Publication 811 (2008), Guide for the Use of the International System of Units (SI), Appendix B: conversion factors.
- NIST Handbook 44 (2024), Appendix C: General tables of units of measurement.
Last reviewed 5 October 2026. Results are estimates; see our disclaimer.