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PSI to Bar Converter

Convert pressure readings from PSI to bar for automotive or industrial uses.

Results

Bar
2.21

How to use this calculator

  1. Read the pressure in PSI from your gauge, spec sheet, or manual.
  2. Enter that PSI value into the calculator.
  3. We divide by 14.5038 to convert PSI to bar and show the result.
  4. Use the bar value when working with European manuals, metric tools, or specs that expect bar instead of PSI.

Inputs explained

PSI
Pounds per square inch, a common pressure unit used in US automotive, HVAC, and industrial contexts. Enter the gauge reading or specified pressure value here.

How it works

We treat your input as a gauge pressure in pounds per square inch (PSI).

Using the relationship 1 bar ≈ 14.5038 PSI, we divide your PSI value by 14.5038 to convert it to bar.

The calculator performs this conversion instantly and displays the result as a decimal value in bar.

You can round the bar value to match the precision of your gauge, sensor, or manufacturer spec.

Formula

Bar = PSI ÷ 14.5038

When to use it

  • Converting US tire pressure recommendations listed in PSI to bar for European or international manuals and placards.
  • Translating compressor or hydraulic system specs that are given in PSI into bar for comparison with metric-rated equipment.
  • Setting up lab instruments or process equipment calibrated in bar when your notes or upstream documentation are in PSI.
  • Helping mechanics, engineers, and hobbyists avoid errors when working across US and metric documentation.

Tips & cautions

  • Check whether your specs call for gauge (psig) or absolute (psia) pressure—this calculator assumes gauge pressure; add local atmospheric pressure if you need absolute values.
  • Round the bar value to the same resolution as your gauge or sensor (for example, one decimal place for passenger-car tires).
  • If you also need kilopascals (kPa), you can convert PSI directly (1 PSI ≈ 6.89476 kPa) or convert from the bar output (1 bar = 100 kPa).
  • Double-check critical pressures against manufacturer documentation, especially for safety valves, high-pressure hydraulics, or industrial processes.
  • Does not distinguish between gauge and absolute pressure beyond assuming a gauge-style input; atmospheric pressure is not added automatically.
  • Assumes positive pressures; it does not model vacuum or negative gauge readings.
  • Uses a constant conversion factor and may differ slightly from rounded reference tables or manufacturer-specific rounding conventions.

Worked examples

32 PSI passenger-car tire

  • Input PSI = 32.
  • Bar = 32 ÷ 14.5038 ≈ 2.21 bar.
  • Interpretation: a typical car tire set to 32 PSI is roughly 2.2 bar in European manuals.

60 PSI shop compressor

  • Input PSI = 60.
  • Bar = 60 ÷ 14.5038 ≈ 4.14 bar.
  • Interpretation: a low setting on a shop compressor at 60 PSI corresponds to just over 4 bar.

Deep dive

Convert PSI to bar instantly using the standard relationship 1 bar ≈ 14.5038 PSI for tires, compressors, hydraulics, and more.

Enter PSI to see the equivalent bar value so you can match European manuals, metric tools, and international pressure specifications without manual math.

Perfect for mechanics, engineers, and DIYers who switch between US and metric pressure units in everyday work.

FAQs

Is this converter for gauge or absolute pressure?
It is intended for typical gauge readings (psig) used in automotive and industrial contexts. If you need absolute pressure (psia), you must add atmospheric pressure to your gauge value before converting.
Why does my manual show slightly different bar values?
Manufacturers often round to one or two decimal places or use a slightly simplified conversion factor. This tool uses 1 bar ≈ 14.5038 PSI, which is more precise than some printed tables.
Can I convert bar back to PSI?
Yes. Use the companion Bar to PSI converter on this site, or multiply your bar value by 14.5038 to get PSI.

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This PSI to bar converter provides a standard unit conversion using a constant factor and is intended for general informational and planning purposes. Always follow manufacturer specifications, safety guidelines, and local regulations for critical pressure settings, and verify important values with calibrated instruments.