Unit conversions
Pressure converter
Explain this equation
Converts a pressure between pascals, kilopascals, bar, millibar and psi. Use it when gauges, data sheets and gas readings use different units.
Value is the pressure you enter. Result is the same pressure in the unit you pick.
The equation is result = value because the pressure itself is unchanged; only the unit changes. Internally the value goes to pascals and then to the chosen unit.
Sense check: 1 bar is 1000 mbar, 100 kPa and about 14.5 psi. 20 mbar is 2 kPa.
Watch out: this does not convert between gauge and absolute pressure. Add atmospheric pressure separately where needed.
Enter your values to see the result.
Good to know
Choose another compatible output unit beside the answer. UK and US gallons are separate; Btu uses the International Table definition.
Sources
Results are arithmetic only. Worked examples are not recommended design settings. This library does not provide automatic gas pipe selection, live gas tightness tests, purging procedures, combustion acceptance limits, installation approval or commissioning certification. Manufacturer data and the applicable current method remain essential.