Convert Torr to Decibars
1 torr equals 0.01333223684 decibars (dbar).
1 Torr = 0.01333223684 dbar
Type in either box. Scientific notation works: 1.5e-3.
Converting a list? Use the bulk torr to decibar converter to paste a column from Excel.
How to Convert Torr to Decibar
- 1 Torr = 0.01333223684 dbar
- 1 dbar = 75.00616827 Torr
- Example: convert 15 Torr to dbar: 15 Torr = 15 × 0.01333223684 dbar = 0.1999835526 dbar
Formula
dbar = Torr × 0.01333223684211
or dbar = Torr ÷ 75.00616827042
Derivation from SI units:
- 1 Torr = 101325/760 Pa = 133.3223684 Pa (1/760 of a standard atmosphere)
- 1 dbar = 10⁻¹ bar = 10⁴ Pa
- 1 Torr = 133.3223684211 Pa ÷ 10000 Pa per dbar = 0.01333223684211 dbar
Both units are defined exactly, so the factor is exact. Torr definition: torr; Decibar definition: decibar.
Worked examples
- A reading of 0.1 Torr converts to 0.001333223684 dbar.
0.1 Torr × 0.01333223684 = 0.001333223684 dbar - A value of 100 Torr is 1.333223684 dbar.
100 Torr × 0.01333223684 = 1.333223684 dbar
Torr to Decibar conversion table
| Torr | Decibars (dbar) |
|---|---|
| 0.000001 Torr | 1.333223684 × 10⁻⁸ dbar |
| 0.00001 Torr | 1.333223684 × 10⁻⁷ dbar |
| 0.0001 Torr | 0.000001333223684 dbar |
| 0.001 Torr | 0.00001333223684 dbar |
| 0.01 Torr | 0.0001333223684 dbar |
| 0.1 Torr | 0.001333223684 dbar |
| 0.5 Torr | 0.006666118421 dbar |
| 1 Torr | 0.01333223684 dbar |
| 5 Torr | 0.06666118421 dbar |
| 10 Torr | 0.1333223684 dbar |
| 50 Torr | 0.6666118421 dbar |
| 100 Torr | 1.333223684 dbar |
| 250 Torr | 3.333059211 dbar |
| 500 Torr | 6.666118421 dbar |
| 750 Torr | 9.999177632 dbar |
| 760 Torr | 10.1325 dbar |
| 1000 Torr | 13.33223684 dbar |
Where it's used
Torr are used for vacuum technology and vacuum gauges, while decibars appear in oceanography: CTD instruments report sea pressure in dbar. Both measure pressure, stress and differential pressure (force per unit area), so the conversion is a fixed factor.
Torr to other pressure units
| Conversion | 1 Torr equals |
|---|---|
| torr to pascal | 133.3223684 Pa |
| torr to kilopascal | 0.1333223684 kPa |
| torr to megapascal | 0.0001333223684 MPa |
| torr to psi | 0.0193367747 psi |
| torr to bar | 0.001333223684 bar |
| torr to millibar | 1.333223684 mbar |
| torr to decibar | 0.01333223684 dbar |
| torr to millimeter of mercury | 0.9999998575 mmHg |
| torr to millimeter of water | 13.59509806 mmH₂O |
| torr to centimeter of water | 1.359509806 cmH₂O |
| torr to inch of water | 0.5352400812 inH₂O |
| torr to inch of water (60 °F) | 0.5357754719 inH₂O (60 °F) |
| torr to inch of mercury | 0.03937007313 inHg |
| torr to atmosphere | 0.001315789474 atm |
| torr to barye | 1333.223684 Ba |
Frequently asked questions
How many decibars are in 1 torr?
1 Torr = 0.01333223684 dbar.
How do I convert torr to decibars?
Multiply the value in Torr by 0.01333223684, or divide it by 75.00616827. For example, 15 Torr × 0.01333223684 = 0.1999835526 dbar.
Is the Torr to dbar 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, "torr (Torr)".
- 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", with SI prefix deci (10⁻¹).
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 Torr to Decibars. Retrieved October 17, 2026, from https://scientificconverters.com/pressure/torr-to-decibar/
IEEE
Scientific Converters, "Convert Torr to Decibars," scientificconverters.com. Accessed: Oct. 17, 2026. [Online]. Available: https://scientificconverters.com/pressure/torr-to-decibar/