Convert Bar to Pascals
1 bar equals 100000 pascals (Pa).
1 bar = 100000 Pa
Type in either box. Scientific notation works: 1.5e-3.
Converting a list? Use the bulk bar to pascal converter to paste a column from Excel.
How to Convert Bar to Pascal
- 1 bar = 100000 Pa
- 1 Pa = 0.00001 bar
- Example: convert 15 bar to Pa: 15 bar = 15 × 100000 Pa = 1500000 Pa
Formula
Pa = bar × 100000
Derivation from SI units:
- 1 bar = 10⁵ Pa (exact, by definition)
- 1 Pa = 1 N/m² = 1 kg·m⁻¹·s⁻²
Both units are defined exactly, so the factor is exact. Bar definition: bar; Pascal definition: pascal.
Worked examples
- A workshop compressed-air line at 6 bar gauge is 600000 Pa above atmosphere.
6 bar × 100000 = 600000 Pa - A car tyre inflated to 2.5 bar is at 250000 Pa gauge.
2.5 bar × 100000 = 250000 Pa
Bar to Pascal conversion table
| Bar | Pascals (Pa) |
|---|---|
| 0.01 bar | 1000 Pa |
| 0.05 bar | 5000 Pa |
| 0.1 bar | 10000 Pa |
| 0.25 bar | 25000 Pa |
| 0.5 bar | 50000 Pa |
| 1 bar | 100000 Pa |
| 1.01325 bar | 101325 Pa |
| 1.5 bar | 150000 Pa |
| 2 bar | 200000 Pa |
| 2.5 bar | 250000 Pa |
| 3 bar | 300000 Pa |
| 4 bar | 400000 Pa |
| 5 bar | 500000 Pa |
| 6 bar | 600000 Pa |
| 7 bar | 700000 Pa |
| 8 bar | 800000 Pa |
| 10 bar | 1000000 Pa |
| 12 bar | 1200000 Pa |
| 16 bar | 1600000 Pa |
| 20 bar | 2000000 Pa |
| 25 bar | 2500000 Pa |
| 40 bar | 4000000 Pa |
| 100 bar | 10000000 Pa |
| 200 bar | 20000000 Pa |
| 300 bar | 30000000 Pa |
Where it's used
Bar values from pump, valve and compressor datasheets are converted to pascals for SI calculations such as force = pressure × area or flow through an orifice.
Bar to other pressure units
| Conversion | 1 bar equals |
|---|---|
| bar to pascal | 100000 Pa |
| bar to kilopascal | 100 kPa |
| bar to megapascal | 0.1 MPa |
| bar to psi | 14.50377377 psi |
| bar to millibar | 1000 mbar |
| bar to decibar | 10 dbar |
| bar to torr | 750.0616827 Torr |
| bar to millimeter of mercury | 750.0615758 mmHg |
| bar to millimeter of water | 10197.16213 mmH₂O |
| bar to centimeter of water | 1019.716213 cmH₂O |
| bar to inch of water | 401.463076 inH₂O |
| bar to inch of water (60 °F) | 401.864652 inH₂O (60 °F) |
| bar to inch of mercury | 29.5299833 inHg |
| bar to atmosphere | 0.9869232667 atm |
| bar to barye | 1000000 Ba |
Frequently asked questions
Is a bar the same as an atmosphere?
Close but not equal: 1 bar = 100 000 Pa and 1 atm = 101 325 Pa, so 1 bar = 0.9869232667 atm.
How many pascals are in 1 bar?
1 bar = 100000 Pa.
How do I convert bar to pascals?
Multiply the value in bar by 100000. For example, 15 bar × 100000 = 1500000 Pa.
Is the bar to Pa conversion exact?
Yes. Both units are defined exactly, and 1 bar is exactly 100000 Pa.
Sources
- 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".
- The International System of Units (SI), 9th edition (SI Brochure), Bureau International des Poids et Mesures , Table 4, coherent derived units with special names.
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 Bar to Pascals. Retrieved October 17, 2026, from https://scientificconverters.com/pressure/bar-to-pascal/
IEEE
Scientific Converters, "Convert Bar to Pascals," scientificconverters.com. Accessed: Oct. 17, 2026. [Online]. Available: https://scientificconverters.com/pressure/bar-to-pascal/