Pressure Converter

Convert pressure between 12 units: pascals, hectopascals, kilopascals, megapascals, bar, millibar, psi, standard atmospheres, kgf/cm², torr, millimetres of mercury and inches of mercury – used for tyres, weather, engineering and blood pressure.

  • Number → Converted value, Full conversion table
  • Runs in your browser
  • Free, no sign-up
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How to use Pressure Converter

  1. Type the value you want to convert.
  2. Choose the unit you are converting from and the unit you want.
  3. Read the result instantly – every other unit is listed in the table below it.
  4. Use “Copy” to copy the result, or “Swap” to convert the other way.

Common pressure conversions

FromEquals
1 Pound per square inch (psi)0.06894757293 bar (Bar)
1 Bar (bar)14.50377377 psi (Pound per square inch)
1 Kilopascal (kPa)0.1450377377 psi (Pound per square inch)
1 Standard atmosphere (atm)101.325 kPa (Kilopascal)
1 Millimetre of mercury (mmHg)0.1333223874 kPa (Kilopascal)
1 Hectopascal (hPa)0.02952998016 inHg (Inch of mercury)
1 Megapascal (MPa)145.0377377 psi (Pound per square inch)
1 Kilogram-force per cm² (kgf/cm²)0.980665 bar (Bar)

Pound per square inch to Bar table

Pound per square inch (psi)Bar (bar)
1 psi0.06894757293 bar
2 psi0.1378951459 bar
5 psi0.3447378647 bar
10 psi0.6894757293 bar
20 psi1.378951459 bar
25 psi1.723689323 bar
50 psi3.447378647 bar
100 psi6.894757293 bar
500 psi34.47378647 bar
1,000 psi68.94757293 bar

Units in this converter

Pascal (Pa), Hectopascal (hPa), Millibar (mbar), Kilopascal (kPa), Megapascal (MPa), Bar (bar), Standard atmosphere (atm), Pound per square inch (psi), Kilogram-force per cm² (kgf/cm²), Torr (Torr), Millimetre of mercury (mmHg), Inch of mercury (inHg).

Examples

  • 32 psi (typical car tyre) = 2.21 bar = 220.6 kPa
  • 1 atm = 101.325 kPa = 760 mmHg
  • 1013 hPa = 29.91 inHg

Supported formats

InputNumber
OutputConverted value, Full conversion table
ProcessingOn your device, in the browser (no upload)

Limitations to know

  • Gauge pressure (tyres) and absolute pressure use the same units; this tool converts the number only.
  • Results are shown to up to 10 significant digits; extremely large or small values switch to scientific notation (e.g. 1.5e-12).

Privacy: Pressure Converter runs entirely in your web browser. Your Number data is not uploaded, stored or shared, and nothing about its contents is sent to analytics.

Frequently asked questions

How do I convert psi to bar?

Multiply psi by 0.0689476. For example, 35 psi × 0.0689476 = 2.41 bar.

Are hPa and millibar the same?

Yes. One hectopascal equals one millibar (100 Pa). Weather maps use both.

References

Last updated · Maintained by the ZippyToolkit team