Convert Millibars to Pascals
1 millibar (mbar) equals 100 pascals (Pa).
1 mbar = 100 Pa
Type in either box. Scientific notation works: 1.5e-3.
Converting a list? Use the bulk millibar to pascal converter to paste a column from Excel.
How to Convert Millibar to Pascal
- 1 mbar = 100 Pa
- 1 Pa = 0.01 mbar
- Example: convert 15 mbar to Pa: 15 mbar = 15 × 100 Pa = 1500 Pa
Formula
Pa = mbar × 100
Derivation from SI units:
- 1 mbar = 10⁻³ bar = 100 Pa = 1 hPa
- 1 Pa = 1 N/m² = 1 kg·m⁻¹·s⁻²
Both units are defined exactly, so the factor is exact. Millibar definition: millibar; Pascal definition: pascal.
Worked examples
- Natural gas supplied at 20 mbar in the UK is at 2000 Pa.
20 mbar × 100 = 2000 Pa - Standard sea-level pressure, 1013.25 mbar, is 101325 Pa.
1013.25 mbar × 100 = 101325 Pa
Millibar to Pascal conversion table
| Millibars (mbar) | Pascals (Pa) |
|---|---|
| 0.1 mbar | 10 Pa |
| 0.5 mbar | 50 Pa |
| 1 mbar | 100 Pa |
| 2 mbar | 200 Pa |
| 5 mbar | 500 Pa |
| 10 mbar | 1000 Pa |
| 20 mbar | 2000 Pa |
| 25 mbar | 2500 Pa |
| 37 mbar | 3700 Pa |
| 50 mbar | 5000 Pa |
| 100 mbar | 10000 Pa |
| 250 mbar | 25000 Pa |
| 500 mbar | 50000 Pa |
| 900 mbar | 90000 Pa |
| 950 mbar | 95000 Pa |
| 980 mbar | 98000 Pa |
| 1000 mbar | 100000 Pa |
| 1013.25 mbar | 101325 Pa |
| 1020 mbar | 102000 Pa |
| 1050 mbar | 105000 Pa |
Where it's used
Gas, weather and vacuum data in mbar are multiplied by 100 to get pascals for SI formulas and for comparison with cleanroom or filter specifications.
Millibar to other pressure units
| Conversion | 1 mbar equals |
|---|---|
| millibar to pascal | 100 Pa |
| millibar to kilopascal | 0.1 kPa |
| millibar to megapascal | 0.0001 MPa |
| millibar to psi | 0.01450377377 psi |
| millibar to bar | 0.001 bar |
| millibar to decibar | 0.01 dbar |
| millibar to torr | 0.7500616827 Torr |
| millibar to millimeter of mercury | 0.7500615758 mmHg |
| millibar to millimeter of water | 10.19716213 mmH₂O |
| millibar to centimeter of water | 1.019716213 cmH₂O |
| millibar to inch of water | 0.401463076 inH₂O |
| millibar to inch of water (60 °F) | 0.401864652 inH₂O (60 °F) |
| millibar to inch of mercury | 0.0295299833 inHg |
| millibar to atmosphere | 0.0009869232667 atm |
| millibar to barye | 1000 Ba |
Frequently asked questions
How many Pa is 1 mbar?
Exactly 100 Pa, so 25 mbar = 2500 Pa.
How many pascals are in 1 millibar?
1 mbar = 100 Pa.
How do I convert millibars to pascals?
Multiply the value in mbar by 100. For example, 15 mbar × 100 = 1500 Pa.
Is the mbar to Pa conversion exact?
Yes. Both units are defined exactly, and 1 mbar is exactly 100 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, "millibar".
- 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 Millibars to Pascals. Retrieved October 17, 2026, from https://scientificconverters.com/pressure/millibar-to-pascal/
IEEE
Scientific Converters, "Convert Millibars to Pascals," scientificconverters.com. Accessed: Oct. 17, 2026. [Online]. Available: https://scientificconverters.com/pressure/millibar-to-pascal/