NiCuZnENGINEERING SOFTWARE

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Engineering unit converter.

Convert pressure, temperature, flow, power, energy and physical properties between SI, metric and US units.

Gauge and absolute pressures differ by the atmospheric pressure (about 1.013 bar at sea level). Convert the unit here, and keep track of gauge or absolute separately.

Pressure

Pa1
kPa0.001
MPa1.00000e-6
bar1.00000e-5
psi0.000145
atm9.86923e-6
kgf/cm²1.01972e-5
mmHg0.0075006
m H₂O0.000102
in H₂O0.0040146

Notes

Conversion factors used

Factors follow standard definitions: 1 bar = 100 000 Pa, 1 atm = 101 325 Pa, 1 lb = 0.45359237 kg, and the International Table calorie (4.1868 J) and Btu. US gallons and barrels (42 US gallons) are used for volumetric flow. Results are shown to six or seven significant figures.

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