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Pressure Converter – 13 units of pressure

Convert pressure between psi, bar, kPa, atm, mmHg, hPa and more – exact and instant.

1 psi = 0.06894757293 bar

Formula: bar = psi × 0.06894757293

Common values
Decimals
In every unit 13 units
Pascal (Pa) 6,894.757293 Pa
Hectopascal (hPa) 68.94757293 hPa
Kilopascal (kPa) 6.894757293 kPa
Megapascal (MPa) 0.006894757293 MPa
Millibar (mbar) 68.94757293 mbar
Bar (bar) 0.06894757293 bar
Standard atmosphere (atm) 0.06804596391 atm
Technical atmosphere (at) 0.07030695796 at
Pound per square inch (psi) 1 psi
Millimeter of mercury (mmHg) 51.7149252 mmHg
Torr (Torr) 51.71493257 Torr
Inch of mercury (inHg) 2.036020461 inHg
Inch of water (inH₂O) 27.67990471 inH₂O

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Units of pressure

Pascal (Pa)SI (metric) unit
Hectopascal (hPa)SI (metric) unit1 hPa = 100 Pa
Kilopascal (kPa)SI (metric) unit1 kPa = 1,000 Pa
Megapascal (MPa)SI (metric) unit1 MPa = 1,000,000 Pa
Millibar (mbar)metric unit accepted with the SI1 mbar = 100 Pa
Bar (bar)metric unit accepted with the SI1 bar = 100,000 Pa
Standard atmosphere (atm)unit1 atm = 101,325 Pa
Technical atmosphere (at)unit1 at = 98,066.5 Pa
Pound per square inch (psi)imperial and US customary unit1 psi = 6,894.757293 Pa
Millimeter of mercury (mmHg)unit1 mmHg = 133.3223874 Pa
Torr (Torr)unit1 Torr = 133.3223684 Pa
Inch of mercury (inHg)imperial and US customary unit1 inHg = 3,386.389 Pa
Inch of water (inH₂O)imperial and US customary unit1 inH₂O = 249.08891 Pa

How to use: Pressure Converter

  1. 1 Pick the unit you have and the unit you need.
  2. 2 Type the value – the result in the other unit appears at once (type in the result field to convert back).
  3. 3 Use a common value, set the decimals or swap the units with one click.
  4. 4 Open “In every unit” to see the value in all 13 units of pressure.

About this tool

Pressure is force per area. Tyres are pumped in bar or psi, weather maps use hectopascals or millibars, blood pressure is measured in millimetres of mercury and engineering uses pascals and megapascals.

Here every value is converted through the pascal (Pa). Choose any two of the 13 units below the converter, or start from one of the popular conversions.

Calculated in your browser – nothing you type is sent anywhere.

Frequently asked questions

Which units of pressure can I convert?

Pascal (Pa), Hectopascal (hPa), Kilopascal (kPa), Megapascal (MPa), Millibar (mbar), Bar (bar), Standard atmosphere (atm), Technical atmosphere (at), Pound per square inch (psi), Millimeter of mercury (mmHg), Torr (Torr), Inch of mercury (inHg) and Inch of water (inH₂O).

Which pressure conversions are used most?

1 psi = 0.06894757293 bar; 1 kPa = 0.1450377377 psi; 1 atm = 14.69594878 psi; 1 mmHg = 0.1333223874 kPa; 1 hPa = 0.02952998016 inHg; 1 bar = 0.9869232667 atm.

How exact is the converter?

Each unit is defined by its official value in Pa, so conversions are exact up to the 10 significant digits shown; you can round to 0–6 decimals.

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