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PSI → Bar

Convert PSI to bar or bar to PSI for pressure measurements.

PSI

Bar

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Formula

1 PSI = 0.0689476 bar

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PSI to Bar Converter FAQ

What is 100 PSI in bar?

100 PSI ≈ 6.89 bar.

What is standard tire pressure in bar?

Typical car tires are 2.0–2.5 bar (29–36 PSI).

PSI to bar conversion chart — common values

Use this reference chart for the most common PSI to bar conversions in construction, automotive, and HVAC applications.

PSI	Bar	Common use
15 PSI	1.03 bar	Low tire pressure warning
30 PSI	2.07 bar	Standard car tire (compact)
32 PSI	2.21 bar	Standard car tire (common)
35 PSI	2.41 bar	SUV / light truck tire
40 PSI	2.76 bar	Max cold inflation (most cars)
50 PSI	3.45 bar	Van / minibus tires
60 PSI	4.14 bar	Light truck / bicycle tires
80 PSI	5.52 bar	Road bicycle tires
100 PSI	6.89 bar	Air compressor — standard
120 PSI	8.27 bar	Air compressor — high
150 PSI	10.34 bar	Hydraulic systems
200 PSI	13.79 bar	Industrial hydraulics
250 PSI	17.24 bar	High-pressure systems
300 PSI	20.68 bar	Heavy industrial
500 PSI	34.47 bar	Hydraulic press systems
1000 PSI	68.95 bar	High-pressure hydraulics
3000 PSI	206.84 bar	Pressure washing / fire suppression

Bar to PSI conversion chart

Bar	PSI	Common use
0.5 bar	7.25 PSI	Very low pressure
1 bar	14.50 PSI	Atmospheric pressure approx.
1.5 bar	21.76 PSI	Low tire pressure
2 bar	29.01 PSI	Standard European tire pressure
2.2 bar	31.91 PSI	Common car tire
2.5 bar	36.26 PSI	SUV / larger vehicle tires
3 bar	43.51 PSI	Van tires
4 bar	58.02 PSI	Bicycle / light truck tires
5 bar	72.52 PSI	Air tools / compressors
6 bar	87.02 PSI	Standard compressor output
7 bar	101.53 PSI	High compressor output
10 bar	145.04 PSI	Hydraulic systems
20 bar	290.08 PSI	Industrial hydraulics
50 bar	725.19 PSI	High-pressure industrial
100 bar	1450.38 PSI	Extreme pressure systems

PSI and bar in everyday applications

Tire pressure

Most car tires are inflated to 30–35 PSI (2.07–2.41 bar). Check your door jamb sticker for the manufacturer's recommended pressure — not the maximum printed on the tire sidewall. European tire gauges typically display in bar; US gauges display in PSI.

Air compressors

Portable air compressors for DIY use typically operate at 90–120 PSI (6.2–8.3 bar). Pneumatic nail guns need 70–120 PSI depending on the tool. Impact wrenches typically require 90 PSI minimum.

Hydraulic systems

Construction equipment hydraulics commonly operate at 3,000–5,000 PSI (207–345 bar). Excavators, forklifts, and cranes use hydraulic circuits in this range.

HVAC and plumbing

Residential water supply pressure is typically 40–80 PSI (2.8–5.5 bar). HVAC refrigerant systems vary by refrigerant type — R-410A operates at around 200–400 PSI on the high side.

Common PSI to bar conversions — quick answers

These are the most searched PSI to bar conversions. The conversion factor is 1 PSI = 0.0689476 bar.

PSI value	Bar equivalent	Common use
20 PSI to bar	1.379 bar	Low tire pressure warning
30 PSI to bar	2.068 bar	Standard car tire (compact)
32 PSI to bar	2.206 bar	Most common car tire pressure
33 PSI to bar	2.275 bar	Common front tire pressure
35 PSI to bar	2.413 bar	SUV / light truck tire
36 PSI to bar	2.482 bar	Common rear tire pressure
40 PSI to bar	2.758 bar	Max cold inflation (most cars)
50 PSI to bar	3.447 bar	Van / light truck tires
60 PSI to bar	4.137 bar	Bicycle / road tires
80 PSI to bar	5.516 bar	Road bike tires
100 PSI to bar	6.895 bar	Air compressor standard output
120 PSI to bar	8.274 bar	Air compressor high output
150 PSI to bar	10.342 bar	Hydraulic systems
2.8 bar to PSI	40.61 PSI	European tire pressure marking
2.5 bar to PSI	36.26 PSI	SUV tire in European spec
2.2 bar to PSI	31.91 PSI	Common European car tire

How to convert PSI to bar manually

The exact conversion formula is: Bar = PSI × 0.0689476

For a quick mental estimate, multiply PSI by 0.07. This gives results accurate to within 2%.

To convert bar to PSI: PSI = Bar × 14.5038

For a quick estimate, multiply bar by 14.5. So 2.5 bar × 14.5 = 36.25 PSI (actual: 36.26 PSI).

Why PSI and bar exist side by side

PSI (pounds per square inch) is the standard pressure unit in the United States. Bar is used in Europe and most of the rest of the world. Car tires, air compressors, and HVAC equipment are often labeled in one unit while manuals or gauges show the other — making this conversion a daily need for mechanics, engineers, and tradespeople working with international equipment.

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