Can I use kilopascals?

Convert bar to kPa by multiplying by 100. Use a separate converter if needed.

Is 1 bar the same as atmospheric pressure?

Atmospheric pressure at sea level is about 1.013 bar. Many gauges show 0 at atmospheric; this converter assumes bar (gauge), not absolute.

Can I use this for SCUBA or high-pressure gas systems?

Yes for unit conversion, but always follow certified tables and gauges. This tool does not address safety margins or tank ratings.

unit calculator

Bar to PSI Converter

Convert bar measurements back into PSI.

Results

PSI: 29.01

How to use this calculator

Enter the pressure in bar.
We multiply by 14.5038 to convert to PSI.
Use the PSI value for US gauges, manuals, or tools.

Inputs explained

Bar: Pressure value in bar (gauge reading). Most automotive/industrial specs are given as bar (gauge).

How it works

Multiply bar by 14.5038 to get PSI.

Formula

PSI = Bar × 14.5038

When to use it

Reading European tire placards and setting PSI on US gauges.
Converting compressor specs in bar to PSI ratings.
Checking hydraulic equipment when manuals list bar but your tools show PSI.
Comparing EU compressor ratings to US-spec compressors when shopping or sizing tools.
Understanding pressure requirements for imported equipment that lists bar only.

Tips & cautions

Most passenger tires list bar with one decimal place—round appropriately when setting pressure.
Confirm whether the source is gauge or absolute; this assumes gauge pressure.
If you need kPa, multiply bar by 100 or convert from PSI after this step.
For rough mental math, 1 bar ≈ 14.5 PSI; use this when you don’t need exact decimals.
Always default to the vehicle/equipment manual; use this converter as a helper, not a replacement.
Double-check conversions for high-pressure systems (hydraulics, SCUBA) where mistakes have safety implications.
Does not add atmospheric pressure for absolute measurements.
Negative/vacuum pressures are not modeled.
Rounding may differ from the increments available on your gauge.
Assumes standard Earth sea-level conditions; does not adjust for altitude or temperature effects.
Not suitable for precise calibration—use certified gauges and calibration procedures for that.

Worked examples

2 bar

2 × 14.5038 ≈ 29 PSI

4 bar

4 × 14.5038 ≈ 58 PSI

2.5 bar tire spec

2.5 × 14.5038 ≈ 36 PSI (common passenger tire pressure).

10 bar compressor

10 × 14.5038 ≈ 145 PSI (shop air range).

Deep dive

Convert bar to PSI instantly so European pressure specs make sense on US gauges.

Great for tires, compressors, and hydraulics when you need a quick bar-to-PSI lookup.

Use this bar-to-psi converter when importing tools or reading EU manuals that don’t list PSI.

Ideal for cyclists, mechanics, and DIYers who see pressures listed in bar but work with PSI gauges.

FAQs

Can I use kilopascals?: Convert bar to kPa by multiplying by 100. Use a separate converter if needed.
Is 1 bar the same as atmospheric pressure?: Atmospheric pressure at sea level is about 1.013 bar. Many gauges show 0 at atmospheric; this converter assumes bar (gauge), not absolute.
Can I use this for SCUBA or high-pressure gas systems?: Yes for unit conversion, but always follow certified tables and gauges. This tool does not address safety margins or tank ratings.

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For planning only. Follow manufacturer and safety recommendations for operating pressures and use certified gauges for critical systems. This converter does not adjust for absolute vs gauge, altitude, or temperature effects.