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PSI ↔ Bar
Forward converts psi to bar via pascals. Reverse converts bar to psi. 1 bar = 100,000 Pa.
Limitation: Gauge vs absolute pressure is not distinguished—enter the number from your gauge or datasheet as labeled.
How to Convert PSI and Bar
Choose direction and enter a non-negative pressure reading.
Choose psi → bar or reverse.
Gauge labels
Many EU tires show bar; US gauges show psi. Convert the number as printed—do not mix gauge and absolute without knowing the reference.
What the Pressure Means
Forward converts psi to bar via pascals. Reverse converts bar to psi. 1 bar = 100,000 Pa.
Worked Examples
32 psi tire
Inputs
Result
32 × 6894.757… / 1e5.
2.5 bar
Inputs
Result
2.5 × 1e5 / 6894.757…
Check the other direction
Flip to reverse and paste the output to confirm you land back near the original value.
Frequently Asked Questions
Still have questions about this calculation?
Try the CalculatorConversion Formulas
Documented exact or standard factors with reverse mode.
Formula
psi → bar
psi × 6894.757293168361 / 100000
bar → psi
bar × 100000 / 6894.757293168361
Scientific Background
Assumptions: 1 psi = 6894.757293168361 Pa; 1 bar = 1e5 Pa. Limitations: no atm/torr on this page.
Sources & review
PSI to Bar Calculator documents the references behind its formulas and assumptions. Always treat results as educational estimates, not personalized professional advice.
Last reviewed
August 2, 2026
Reference
nist.gov
https://www.nist.gov/pml/owm/si-units-pressureFree Calculator Hub methodology
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