Is 1 bar close to 15 psi?

Yes. 1 bar = 14.5038 psi, so it is close to 15 psi.

How do I convert psi to bar manually?

Multiply psi by 0.0689476. Or divide by 14.5038.

Is psi absolute or gauge pressure?

PSI typically means gauge pressure (psig) in practice. PSIA (absolute) includes atmospheric pressure of ~14.696 psi.

PSI to Bar Converter

1 psi = 0.0689476 bar. Standard atmosphere = 14.696 psi ≈ 1.013 bar. Car tires run at 30–35 psi.

Inverse conversion

1 bar = 14.5038 psi. Standard atmosphere = 1.01325 bar. Car tires are typically 2.0–2.5 bar (29–36 psi).

Bar to PSI →

Formula

bar = psi × 0.0689476

Worked example

To convert 50 psi to bar, multiply 50 × 0.0689476 = 3.447 bar.

Quick reference table

psi	bar
1	0.068948
5	0.344738
10	0.689476
15	1.034214
30	2.068427
50	3.447379
100	6.894757
150	10.342136
200	13.789515

Unit definitions

PSI (psi)

PSI (pounds per square inch) is a pressure unit commonly used in the US for tire pressure, hydraulics, and gas systems.

Bar (bar)

Bar is a metric unit of pressure equal to 100,000 pascals (Pa). It is widely used in Europe and in scientific contexts.

Common use cases

Tire pressure
Industrial fluid systems
Gas cylinder pressure
Hydraulic systems

PSI to Kilopascals Kilopascals to PSI Atmospheres to Bar Megapascals to PSI

Related guides

Common Pressure Units: PSI, Bar, kPa, atm, and MPa Explained

Pressure is force per unit area, and its units reflect the different industries and national standards that have evolved over centuries. This guide explains what each common pressure unit means, where it is used, and how to convert between them accurately.

Frequently asked questions

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