Convert Millibars to Torr
1 millibar (mbar) equals 0.7500616827 torr.
1 mbar = 0.7500616827 Torr
Type in either box. Scientific notation works: 1.5e-3.
Converting a list? Use the bulk millibar to torr converter to paste a column from Excel.
How to Convert Millibar to Torr
- 1 mbar = 0.7500616827 Torr
- 1 Torr = 1.333223684 mbar
- Example: convert 15 mbar to Torr: 15 mbar = 15 × 0.7500616827 Torr = 11.25092524 Torr
Formula
Torr = mbar × 0.7500616827042
or Torr = mbar ÷ 1.333223684211
Derivation from SI units:
- 1 mbar = 10⁻³ bar = 100 Pa = 1 hPa
- 1 Torr = 101325/760 Pa = 133.3223684 Pa (1/760 of a standard atmosphere)
- 1 mbar = 100 Pa ÷ 133.3223684211 Pa per Torr = 0.7500616827042 Torr
Both units are defined exactly, so the factor is exact. Millibar definition: millibar; Torr definition: torr.
Worked examples
- A rough-pump base pressure of 0.01 mbar is 0.007500616827 Torr.
0.01 mbar × 0.7500616827 = 0.007500616827 Torr - 1013.25 mbar is exactly 760 Torr.
1013.25 mbar × 0.7500616827 = 760 Torr
Millibar to Torr conversion table
| Millibars (mbar) | Torr |
|---|---|
| 0.1 mbar | 0.07500616827 Torr |
| 0.5 mbar | 0.3750308414 Torr |
| 1 mbar | 0.7500616827 Torr |
| 2 mbar | 1.500123365 Torr |
| 5 mbar | 3.750308414 Torr |
| 10 mbar | 7.500616827 Torr |
| 20 mbar | 15.00123365 Torr |
| 25 mbar | 18.75154207 Torr |
| 37 mbar | 27.75228226 Torr |
| 50 mbar | 37.50308414 Torr |
| 100 mbar | 75.00616827 Torr |
| 250 mbar | 187.5154207 Torr |
| 500 mbar | 375.0308414 Torr |
| 900 mbar | 675.0555144 Torr |
| 950 mbar | 712.5585986 Torr |
| 980 mbar | 735.0604491 Torr |
| 1000 mbar | 750.0616827 Torr |
| 1013.25 mbar | 760 Torr |
| 1020 mbar | 765.0629164 Torr |
| 1050 mbar | 787.5647668 Torr |
Where it's used
European vacuum specifications in mbar are converted to torr for US equipment, process recipes and gauges.
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 torr is 1 mbar?
1 mbar = 0.7500616827 Torr.
How many torr are in 1 millibar?
1 mbar = 0.7500616827 Torr.
How do I convert millibars to torr?
Multiply the value in mbar by 0.7500616827, or divide it by 1.333223684. For example, 15 mbar × 0.7500616827 = 11.25092524 Torr.
Is the mbar to Torr conversion exact?
Yes. Both units are defined exactly, so the ratio is exact; its decimal form does not terminate and is shown here to 10 significant figures (more with the precision selector).
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".
- 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, "torr (Torr)".
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 Torr. Retrieved October 17, 2026, from https://scientificconverters.com/pressure/millibar-to-torr/
IEEE
Scientific Converters, "Convert Millibars to Torr," scientificconverters.com. Accessed: Oct. 17, 2026. [Online]. Available: https://scientificconverters.com/pressure/millibar-to-torr/