Pressure Converter

psi, bar, kPa, kgf/cm², atm, mmHg and more

Convert
Result
2.41317 bar
Tire Pressure Chart
psibarkPakgf/cm²
261.791791.83
281.931931.97
302.072072.11
322.212212.25
332.282282.32
342.342342.39
352.412412.46
362.482482.53
382.622622.67
402.762762.81
422.902902.95
453.103103.16

Most passenger cars call for 32–36 psi (2.2–2.5 bar). Use the placard on the driver's door jamb and measure when tires are cold.

Common Pressure References
ReferenceValue
1 standard atmosphere101.325 kPa = 1.01325 bar = 14.696 psi = 1.0332 kgf/cm² = 760 mmHg = 1013.25 hPa
1 bar100 kPa = 14.504 psi = 1.0197 kgf/cm²
1 kgf/cm²98.067 kPa = 0.98067 bar = 14.223 psi
1 MPa10 bar = 145.04 psi = 10.197 kgf/cm²
Blood pressure 120/80 mmHg16.0 / 10.7 kPa

Tire and boiler gauges read gauge pressure (psig), which is zero at atmospheric pressure. Absolute pressure (psia) adds about 14.7 psi.

Formulas & Sources
📏 NIST SP 811 — Guide for the Use of the SI
Last reviewed: 2026-10-19
FAQ
How many bar is 35 psi?
35 psi = 2.413 bar = 241.3 kPa = 2.461 kgf/cm².
How do I convert bar to psi?
Multiply bar by 14.504. For example, 2.5 bar is about 36.3 psi.
Is kgf/cm² the same as bar?
Close but not equal: 1 kgf/cm² = 0.98067 bar, about 2% less. It is still common on older gauges and in Asia.
What is standard atmospheric pressure?
1 atm = 101.325 kPa = 14.696 psi = 1013.25 hPa = 760 mmHg.
What tire pressure should I use?
Most passenger cars use 32–36 psi, but always follow the placard on your driver's door jamb.

How to convert pressure units

Different fields use different pressure units: psi and bar for tires, kPa and MPa in engineering, hPa for weather and mmHg for blood pressure.

Enter a value to convert it to 11 units at once, and use the tire pressure chart and reference values for quick checks.

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