Convert Kilopascals to Bar
1 kilopascal (kPa) equals 0.01 bar.
1 kPa = 0.01 bar
Type in either box. Scientific notation works: 1.5e-3.
Converting a list? Use the bulk kilopascal to bar converter to paste a column from Excel.
How to Convert Kilopascal to Bar
- 1 kPa = 0.01 bar
- 1 bar = 100 kPa
- Example: convert 15 kPa to bar: 15 kPa = 15 × 0.01 bar = 0.15 bar
Formula
bar = kPa ÷ 100
Derivation from SI units:
- 1 kPa = 10³ Pa
- 1 bar = 10⁵ Pa (exact, by definition)
- 1 kPa = 1000 Pa ÷ 100000 Pa per bar = 0.01 bar
Both units are defined exactly, so the factor is exact. Kilopascal definition: kilopascal; Bar definition: bar.
Worked examples
- A pressure of 300 kPa is 3 bar.
300 kPa × 0.01 = 3 bar - A 1 MPa (1000 kPa) hydraulic line is at 10 bar.
1000 kPa × 0.01 = 10 bar
Kilopascal to Bar conversion table
| Kilopascals (kPa) | Bar |
|---|---|
| 0.1 kPa | 0.001 bar |
| 0.25 kPa | 0.0025 bar |
| 0.5 kPa | 0.005 bar |
| 1 kPa | 0.01 bar |
| 2 kPa | 0.02 bar |
| 2.5 kPa | 0.025 bar |
| 5 kPa | 0.05 bar |
| 10 kPa | 0.1 bar |
| 20 kPa | 0.2 bar |
| 50 kPa | 0.5 bar |
| 100 kPa | 1 bar |
| 101.325 kPa | 1.01325 bar |
| 150 kPa | 1.5 bar |
| 200 kPa | 2 bar |
| 220 kPa | 2.2 bar |
| 250 kPa | 2.5 bar |
| 300 kPa | 3 bar |
| 350 kPa | 3.5 bar |
| 400 kPa | 4 bar |
| 500 kPa | 5 bar |
| 600 kPa | 6 bar |
| 700 kPa | 7 bar |
| 800 kPa | 8 bar |
| 1000 kPa | 10 bar |
| 2000 kPa | 20 bar |
Where it's used
Metric countries use both kPa and bar, often on the same gauge face. Because 1 bar = 100 kPa exactly, this conversion is a division by 100.
Kilopascal to other pressure units
| Conversion | 1 kPa equals |
|---|---|
| kilopascal to pascal | 1000 Pa |
| kilopascal to megapascal | 0.001 MPa |
| kilopascal to psi | 0.1450377377 psi |
| kilopascal to bar | 0.01 bar |
| kilopascal to millibar | 10 mbar |
| kilopascal to decibar | 0.1 dbar |
| kilopascal to torr | 7.500616827 Torr |
| kilopascal to millimeter of mercury | 7.500615758 mmHg |
| kilopascal to millimeter of water | 101.9716213 mmH₂O |
| kilopascal to centimeter of water | 10.19716213 cmH₂O |
| kilopascal to inch of water | 4.01463076 inH₂O |
| kilopascal to inch of water (60 °F) | 4.01864652 inH₂O (60 °F) |
| kilopascal to inch of mercury | 0.295299833 inHg |
| kilopascal to atmosphere | 0.009869232667 atm |
| kilopascal to barye | 10000 Ba |
Frequently asked questions
Is 100 kPa exactly 1 bar?
Yes, by definition. Standard atmospheric pressure, 101.325 kPa, is 1.01325 bar.
How many bar are in 1 kilopascal?
1 kPa = 0.01 bar.
How do I convert kilopascals to bar?
Multiply the value in kPa by 0.01, or divide it by 100. For example, 15 kPa × 0.01 = 0.15 bar.
Is the kPa to bar conversion exact?
Yes. Both units are defined exactly, and 1 kPa is exactly 0.01 bar.
Sources
- The International System of Units (SI), 9th edition (SI Brochure), Bureau International des Poids et Mesures , Table 7, SI prefixes.
- Guide for the Use of the International System of Units (SI), NIST Special Publication 811, 2008 Edition, National Institute of Standards and Technology , Appendix B.8, "bar".
Last reviewed: . Factors are stored exactly and computed with 50-digit decimal arithmetic. See how we verify conversion factors.
Cite this page
APA
Scientific Converters. (2026, October 15). Convert Kilopascals to Bar. Retrieved October 17, 2026, from https://scientificconverters.com/pressure/kilopascal-to-bar/
IEEE
Scientific Converters, "Convert Kilopascals to Bar," scientificconverters.com. Accessed: Oct. 17, 2026. [Online]. Available: https://scientificconverters.com/pressure/kilopascal-to-bar/