![]() Type in unit symbols, abbreviations, or full names for units of length, area, mass, pressure, and other types. ![]() You can find metric conversion tables for SI units, as well as English units, currency, and other data. Its official symbol is "bar" the earlier "b" is now deprecated, but still often seen especially as "mb" rather than the proper "mbar" for millibars.Ĭ provides an online conversion calculator for all types of measurement units. The word bar is of Greek origin, báros meaning weight. The bar is a measurement unit of pressure, equal to 1,000,000 dynes per square centimetre (baryes), or 100,000 newtons per square metre (pascals). 10 MPa x 10 100 bar 10 MPa x 145.0 1450 PSI: PSI (pounds / square inch) PSI PSI: atm bar MPa: 0.068 0.0689 0.00689: 100 PSI x 0.068 6.80 atm 100 PSI x 0.0689. Thus a reading of 30 psig on a tire gauge represents an absolute pressure of 44.7 psi. If a pressure gauge is calibrated to read zero in space, then at sea level on Earth it would read 14.7 psi. Humans do not feel this pressure because internal pressure of liquid in their bodies matches the external pressure. At sea level, Earth's atmosphere actually exerts a pressure of 14.7 psi. Psig (pound-force per square inch gauge) is a unit of pressure relative to the surrounding atmosphere. You can do the reverse unit conversion fromīar to psig, or enter any two units below: Enter two units to convert From:
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