Pressure Converter
Convert between PSI, bar, kPa, MPa, atm, mmHg, inHg, Pa, torr, and kg/cm² instantly.
Pressure Unit Converter
1 psi = 0.0689476 bar
Result
6.8948 bar
All Equivalent Values
psi
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bar
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kPa
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MPa
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atm
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Pa
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mmHg
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inHg
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cmH2O
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inH2O
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torr
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kg/cm²
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Quick Reference
About pressure units
PSI (pounds per square inch) is the most common pressure unit in US oilfield operations. Wellhead pressures, casing ratings, BOP ratings, and pump pressures are all expressed in psi. International operations more commonly use bar or kPa.
Standard atmosphere (atm) is defined as exactly 101,325 Pa = 14.696 psi. Bar is defined as exactly 100,000 Pa. Torr and mmHg are nearly identical (1 torr = 1/760 atm = 133.322 Pa).
In drilling, reservoir pressures can range from near-atmospheric to over 30,000 psi (2,068 bar) in HPHT wells. Accurate pressure conversion is critical for equipment selection, well control, and safety calculations.
Need help with pressure analysis, well testing, or AI-driven analytics for your operations?
Book a free strategy call →How to Convert PSI to Bar and Other Pressure Units
To convert PSI to bar, multiply by 0.0689476. To convert bar to PSI, multiply by 14.5038. These are the most common pressure conversions in engineering, used across oil and gas, chemical processing, HVAC, and automotive industries.
The relationship between common pressure units: 1 atm = 14.696 psi = 1.01325 bar = 101.325 kPa = 760 mmHg = 760 torr = 29.921 inHg = 1.0332 kg/cm². In petroleum engineering, pressures range from vacuum (sub-atmospheric) to extreme HPHT conditions exceeding 30,000 psi.
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