Convert Decibars to psi
1 decibar (dbar) equals 1.450377377 psi.
1 dbar = 1.450377377 psi
Type in either box. Scientific notation works: 1.5e-3.
Converting a list? Use the bulk decibar to psi converter to paste a column from Excel.
How to Convert Decibar to psi
- 1 dbar = 1.450377377 psi
- 1 psi = 0.6894757293 dbar
- Example: convert 15 dbar to psi: 15 dbar = 15 × 1.450377377 psi = 21.75566066 psi
Formula
psi = dbar × 1.450377377302
Derivation from SI units:
- 1 dbar = 10⁻¹ bar = 10⁴ Pa
- 1 psi = 1 lbf/in² = (0.45359237 kg × 9.80665 m/s²) ÷ (0.0254 m)² = 6894.757293168 Pa
- 1 dbar = 10000 Pa ÷ 6894.757293168 Pa per psi = 1.450377377302 psi
Both units are defined exactly, so the factor is exact. Decibar definition: decibar; psi definition: psi.
Worked examples
- A reading of 50 dbar converts to 72.51886887 psi.
50 dbar × 1.450377377 = 72.51886887 psi - A value of 1000 dbar is 1450.377377 psi.
1000 dbar × 1.450377377 = 1450.377377 psi
Decibar to psi conversion table
| Decibars (dbar) | psi |
|---|---|
| 1 dbar | 1.450377377 psi |
| 5 dbar | 7.251886887 psi |
| 10 dbar | 14.50377377 psi |
| 20 dbar | 29.00754755 psi |
| 50 dbar | 72.51886887 psi |
| 100 dbar | 145.0377377 psi |
| 200 dbar | 290.0754755 psi |
| 500 dbar | 725.1886887 psi |
| 1000 dbar | 1450.377377 psi |
| 2000 dbar | 2900.754755 psi |
| 4000 dbar | 5801.509509 psi |
| 6000 dbar | 8702.264264 psi |
| 11000 dbar | 15954.15115 psi |
Where it's used
Decibars are used for oceanography: CTD instruments report sea pressure in dbar, while psi appear in tyre pressure in the United States (about 30–35 psi for cars). Both measure pressure, stress and differential pressure (force per unit area), so the conversion is a fixed factor.
Decibar to other pressure units
| Conversion | 1 dbar equals |
|---|---|
| decibar to pascal | 10000 Pa |
| decibar to kilopascal | 10 kPa |
| decibar to megapascal | 0.01 MPa |
| decibar to psi | 1.450377377 psi |
| decibar to bar | 0.1 bar |
| decibar to millibar | 100 mbar |
| decibar to torr | 75.00616827 Torr |
| decibar to millimeter of mercury | 75.00615758 mmHg |
| decibar to millimeter of water | 1019.716213 mmH₂O |
| decibar to centimeter of water | 101.9716213 cmH₂O |
| decibar to inch of water | 40.1463076 inH₂O |
| decibar to inch of water (60 °F) | 40.1864652 inH₂O (60 °F) |
| decibar to inch of mercury | 2.95299833 inHg |
| decibar to atmosphere | 0.09869232667 atm |
| decibar to barye | 100000 Ba |
Frequently asked questions
How many psi are in 1 decibar?
1 dbar = 1.450377377 psi.
How do I convert decibars to psi?
Multiply the value in dbar by 1.450377377. For example, 15 dbar × 1.450377377 = 21.75566066 psi.
Is the dbar to psi 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, "bar", with SI prefix deci (10⁻¹).
- 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, "pound-force per square inch (psi)".
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 Decibars to psi. Retrieved October 17, 2026, from https://scientificconverters.com/pressure/decibar-to-psi/
IEEE
Scientific Converters, "Convert Decibars to psi," scientificconverters.com. Accessed: Oct. 17, 2026. [Online]. Available: https://scientificconverters.com/pressure/decibar-to-psi/