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Conversion Table

    • Torr, mtorr, microns, PSI-A, Bar, mbar, kPa, Pa and ATM are in absolute units
    • PSI-G, In H2O, In Hg are in gauge or differential from Atmosphere
    • Atmospheric pressure for differential calculations is locked at 760 Torr in this table, although varies on any day with weather, altitude and temperature
    • 760Torr = 0 inches of Hg and 0 inches of H20
    • 1 Atmosphere stated at standard temperature and pressure

Pressure conversion chart. Converts Torr, mmHg, mtorr/microns, PSI-a, Bar, mbar, mbar/hPa, inH2o, KPA, Pa, inHg, ATM