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Bar to PSI Converter
Convert bar to pounds per sq. inch as you type. Type in either box, or switch to any other pressure unit.
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About bar and pounds per sq. inch
Pressure units show up on tyre gauges, scuba tanks, pumps, compressors and weather reports.
This converter changes bar (bar) into pounds per sq. inch (psi) instantly. You can also type in the second box to convert backwards, or pick any other pressure unit from the menus.
Formula
psi = bar × 14.50377377
1 bar = 14.50377377 psi
1 psi = 0.068947573 bar
Both units are defined in pascals: 1 bar = 100,000 pascal, and 1 pound per sq. inch = 6,894.757293168 pascal. Dividing one by the other gives the factor above.
Worked example
To convert 12 bar: 12 × 14.50377377 = 174.0453 psi.
Notes and assumptions
Results use exact defined factors and are rounded only for display (up to 6 significant digits, or the decimals you choose).
Popular searches
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bar to psi
Bar to pounds per sq. inch conversion table
| bar | psi |
|---|---|
| 1 bar | 14.50377 psi |
| 2 bar | 29.00755 psi |
| 3 bar | 43.51132 psi |
| 4 bar | 58.0151 psi |
| 5 bar | 72.51887 psi |
| 6 bar | 87.02264 psi |
| 7 bar | 101.5264 psi |
| 8 bar | 116.0302 psi |
| 9 bar | 130.534 psi |
| 10 bar | 145.0377 psi |
| 12 bar | 174.0453 psi |
| 15 bar | 217.5566 psi |
| 20 bar | 290.0755 psi |
| bar | psi |
|---|---|
| 25 bar | 362.5943 psi |
| 30 bar | 435.1132 psi |
| 40 bar | 580.151 psi |
| 50 bar | 725.1887 psi |
| 60 bar | 870.2264 psi |
| 70 bar | 1,015.264 psi |
| 75 bar | 1,087.783 psi |
| 80 bar | 1,160.302 psi |
| 90 bar | 1,305.34 psi |
| 100 bar | 1,450.377 psi |
| 250 bar | 3,625.943 psi |
| 500 bar | 7,251.887 psi |
| 1,000 bar | 14,503.77 psi |
How to convert by hand
- Take the value in bar.
- Multiply it by 14.50377377.
- Round only at the end.
Common mistakes
- Rounding the conversion factor too early.
- Mixing up which unit you are converting from.
Sources
- Unit definitions and exact conversion factors: NIST Special Publication 811, Guide for the Use of the International System of Units (SI).
Frequently asked questions
How many pounds per sq. inch are in one bar?
1 bar = 14.50377 psi.
How do I convert bar to pounds per sq. inch?
Multiply by 14.50377377. Example: 10 bar = 145.0377 psi.
How do I convert pounds per sq. inch back to bar?
Divide by 14.50377377. Press the swap button in the converter.
About this tool
- Written by
- [Author: to be assigned]
- Reviewed by
- Formula tests passed · human review pending
- Last updated
- 31 Oct 2026
See our methodology and editorial policy. Think something’s off? Report an error with this tool.
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