PSI to Bar
Convert psi to bar instantly. 1 psi = 0.0689475729 bar. Includes the exact factor, a conversion table of common values and the definition of both units.
How to convert psi to bar
To convert psi to bar, divide by 14.503773773 (multiply by 0.0689475729). The relationship is fixed, so the same factor works for any quantity — there is nothing to look up and nothing that changes with temperature, location or context.
bar = psi × 0.0689475729
PSI to Bar conversion table
The values people look up most often, rounded for reading. Use the calculator above for anything in between.
| PSI | Bar |
|---|---|
| 1 psi | 0.068948 bar |
| 2 psi | 0.137895 bar |
| 3 psi | 0.206843 bar |
| 5 psi | 0.344738 bar |
| 10 psi | 0.689476 bar |
| 20 psi | 1.378951 bar |
| 25 psi | 1.723689 bar |
| 50 psi | 3.447379 bar |
| 100 psi | 6.894757 bar |
| 500 psi | 34.473786 bar |
| 1,000 psi | 68.947573 bar |
What is a psi?
Pounds per square inch, the US pressure unit for tyres and plumbing.
What is a bar?
Defined as exactly 100 kPa, very close to one atmosphere at sea level.
The formula
bar = psi × 0.0689475729
Every result on this page comes from this formula. Nothing is rounded until the final display, so figures match a spreadsheet to the cent.
How to use the PSI to Bar
- Type the number of psi you want to convert.
- Read the result in bar straight away — there is no button to press.
- Check the table below for the values that come up most often, or reverse the conversion with the linked bar to psi page.
PSI to Bar — frequently asked questions
How many bar are in a psi?
One psi equals 0.0689475729 bar. bar = psi × 0.0689475729
What is the formula to convert psi to bar?
The formula is bar = psi × 0.0689475729. It is an exact definition rather than an approximation, so the conversion never drifts no matter how large the number.
How do I convert bar back to psi?
Divide instead of multiplying: one bar is 14.503773773 psi. The reverse converter is linked in the related tools list.
Is this conversion exact?
Yes. Both units are defined against the same base unit by international agreement, so the factor is exact — any rounding you see is only in the display, which you can widen by entering more decimal places.
Is this psi to bar free to use?
Yes. Every calculator on the site is free, needs no sign-up, and runs entirely in your browser, so your figures never leave your device.
What people search for
This page answers each of these searches. They are the exact phrases visitors use to find the psi to bar.
- psi to bar
- 1 psi to bar
- how many bar in a psi
- psi2bar
- psi in bar
About this calculator
Written and reviewed by The Samsung Calculator editorial team. Every calculator is written against a published formula, reviewed against at least one independent reference implementation, and dated when it changes.
Last reviewed August 19, 2026 · Calculation runs client-side · No data collected · Report an error