PSI to Bar Converter
Quick answer: To convert PSI to bar, multiply by 0.06894757. For example, 10 psi is 0.6894757 bar. One pound per square inch equals 0.06894757 bar.
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Use the PSI to Bar Converter
PSI to Bar formula and what each symbol means
bar = psi × 0.06894757
| Symbol | Meaning |
|---|---|
| psi | Pound per square inch |
| bar | Bar |
PSI to Bar examples
1 psi
1 psi × 0.06894757 = 0.06894757 bar.
10 psi
10 psi × 0.06894757 = 0.6894757 bar.
100 psi
100 psi × 0.06894757 = 6.894757 bar.
PSI compared with Bar
One bar is 14.5 times as large as one psi, so your number gets smaller when you convert PSI to bar and bigger when you convert back. If the answer is not smaller than what you typed, you multiplied instead of dividing.
About PSI and bar
Pound per square inch (psi): One pound-force per square inch, about 6,894.757 pascals. Bar (bar): Exactly 100,000 pascals.
Where PSI to bar conversions are used
Tyre pressure is shown in psi, bar or kPa, depending on the vehicle and country. Weather maps use hectopascals or millibars, and altitude and diving use bar or atmospheres.
How to calculate PSI to Bar step by step
- Enter the value in psi (the starting unit).
- Multiply by 0.06894757, because 1 psi = 0.06894757 bar.
- The product is the value in bar. To go back, divide by 0.06894757 or multiply by 14.50377.
Popular pressure conversions
How to read your PSI to Bar result
Quick estimate: multiply by about 0.07 to get bar from PSI; this is within 1.6% of the exact factor. One standard atmosphere is exactly 101,325 Pa, and one bar is exactly 100,000 Pa.
| PSI | BAR |
|---|---|
| 1 | 0.06894757 |
| 2 | 0.1378951 |
| 5 | 0.3447379 |
| 10 | 0.6894757 |
| 20 | 1.378951 |
| 50 | 3.447379 |
| 100 | 6.894757 |
| 1,000 | 68.94757 |
Bar to PSI: quick table
| BAR | PSI |
|---|---|
| 1 | 14.50377 |
| 5 | 72.51887 |
| 10 | 145.0377 |
| 25 | 362.5943 |
| 50 | 725.1887 |
| 100 | 1,450.377 |
| 250 | 3,625.943 |
| 500 | 7,251.887 |
Common mistakes when calculating PSI to Bar
- Treating gauge pressure and absolute pressure as the same: absolute pressure equals gauge plus atmospheric pressure.
- Dividing when you should multiply: from psi to bar multiply by 0.06894757; from bar to psi divide by 0.06894757.
PSI to Bar FAQ
How many bar are in 1 psi?
1 psi equals 0.06894757 bar.
How many psi are in 1 bar?
1 bar equals 14.50377 psi.
Is 1 psi = 0.06894757 bar an exact conversion?
The factor is shown rounded to 7 significant figures (0.06894757). The calculator above uses more digits.
What is a bar (bar)?
Exactly 100,000 pascals.
How can I estimate PSI to bar in my head?
Quick estimate: multiply by about 0.07 to get bar from PSI; this is within 1.6% of the exact factor.
What is 500 psi in bar?
500 psi = 34.47379 bar (since 500 × 0.06894757).
What is 15 psi in bar?
15 psi = 1.034214 bar (since 15 × 0.06894757).
What is 75 psi in bar?
75 psi = 5.171068 bar (since 75 × 0.06894757).
How many decimals should I keep when converting psi to bar?
Match the precision of your original measurement. For example, 0.6894757 bar rounds to 0.689 bar at 3 significant figures; keep more digits only for engineering or scientific work.
More in Pressure converters
- Pascals to PSI Converter
- Atmospheres to Bar Converter
- Pascals to mmHg Converter
- Atmospheres to kPa Converter
- Pascals to kPa Converter
- Atmospheres to mmHg Converter
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Method, review and disclaimer
Edited by: Hemant Kumar and Anjita Rai, founders of ToolsVault (SEO and content professional, not a licensed adviser). Method: this tool runs in your browser using the formula shown on this page; the numbers you enter are not sent to our servers. Sources: NIST SP 811, Appendix B.8: conversion factors, BIPM: the SI derived units