Converting between Pressure Units?

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The North American record for highest recorded barometric pressure is 31.85 in. Hg, set in 1989 in Northway, Alaska.

1) Convert this pressure to millimeters of mercury

2) Convert this pressure to atmospheres.

3) Convert this pressure to torr.

4) Convert this pressure to kilopascals.

3 Answers

  • 1. Note: 1 inch = 2.54 centimeters = 25.4 millimeters

    31.85 in.Hg x (25.4 mmHg/1 inHg) = 808.99 mmHg

    1. Note: 1 atm = 760 mmHg

    808.99 mmHg x (1 atm/760 mmHg) = 1.06 atm

    1. Note: 1 atm = 760 torr

    808.99 mmHg = 1.06 atm = 1.06 torr

    1. Note: 1 atm = 101325 Pa; 1 kPa = 1000 Pa

    1.06 atm x (101325 Pa/1 atm) x (1 kPa/1000 Pa) = 108 kPa

    That’s it!n_n

  • Convert Kpa To Inhg

  • 1) 31.85 in. Hg * 25.4 mm / in. = 808.99 mm Hg

    2) 1 atm = 760 mm Hg

    808.99 / 760 = 1.0645 atm

    3) Torr is the same as mm Hg, so this is 808.99 again.

    4) 1 atm = 101.3 kPa

    1.0645 * 101.3 = 107.83 kPa

    I hope this helps.

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