Unit Conversions & Measures
Pounds per Square Inch to Bars Converter
Convert pounds per square inch to bars with the exact factor, the working shown step by step and a plain-English explanation.
Your inputs
Change any value to update the result instantly.
Bars
6.894757 bar
Conversion factor
1 psi = 0.0689475729 bar
Value in pascal (internal base unit)
689,475.73 Pa
Reverse conversion check
6.894757 bar = 100 psi
Rounded for everyday use
6.9 bar
What this calculator does
Converts a measurement given in pound per square inchs into bars using the defined conversion factor.
What your result means
The same quantity expressed in bar instead of psi. Nothing about the measurement itself changes.
Formula and working
bar = psi × 0.0689475729
- 1
Start with your value
100 psi
- 2
Convert to pascal
100 × 6,894.7572932 = 689,475.73 Pa
- 3
Convert into bars
689,475.73 ÷ 100,000 = 6.894757 bar
- 4
Result
100 psi = 6.894757 bar
Frequently asked questions
Symbols and assumptions
- psi
- Input unit — pound per square inch
- bar
- Output unit — bar
- Pa
- Base unit used internally for pressure and stress
- • Both units measure pressure and stress, so the physical quantity is unchanged by the conversion.
- • The relationship is exactly linear: 1 psi = 0.0689475729 bar.
- • Values are converted through the SI base unit for this quantity rather than pair by pair.
Sources and review
Reviewed 2026-09-22 · Next review 2027-09-22
- • A unit conversion changes how a number is expressed, not how it was measured — the answer can never be more accurate than the value entered.
- • Displayed figures are rounded for readability; the full stored precision of the bar value is used in every onward calculation.
Important limitation
This is an educational estimate based only on the values and formula shown. Verify current rates, rules, units, and professional standards before relying on the result. It is not personalized financial or investment advice.
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