Inches of Mercury to Millimeters of water conversion

Inches of Mercury

Inches of Mercury (inHg) are used to measure pressure in the imperial system. Traditionally this unit is used in the United States for barometric pressure in weather reports. It is the pressure from a column of mercury exactly one inch high at standard gravity.

mm of water

The millimeter of water (mmH₂O) is a unit of pressure exerted by a 1 millimeter column of water at 4 degrees Celsius under standard gravity.

Inches of Mercury to Millimeters of water table

Starting value

Increment

Accuracy

Inches of Mercury

Millimeters of water

0inHg

0.00000mm H2O

1inHg

345.31663mm H2O

2inHg

690.63325mm H2O

3inHg

1,035.94988mm H2O

4inHg

1,381.26651mm H2O

5inHg

1,726.58314mm H2O

6inHg

2,071.89976mm H2O

7inHg

2,417.21639mm H2O

8inHg

2,762.53302mm H2O

9inHg

3,107.84964mm H2O

10inHg

3,453.16627mm H2O

11inHg

3,798.48290mm H2O

12inHg

4,143.79953mm H2O

13inHg

4,489.11615mm H2O

14inHg

4,834.43278mm H2O

15inHg

5,179.74941mm H2O

16inHg

5,525.06603mm H2O

17inHg

5,870.38266mm H2O

18inHg

6,215.69929mm H2O

19inHg

6,561.01592mm H2O

20inHg

6,906.33254mm H2O

21inHg

7,251.64917mm H2O

22inHg

7,596.96580mm H2O

23inHg

7,942.28242mm H2O

24inHg

8,287.59905mm H2O

25inHg

8,632.91568mm H2O

26inHg

8,978.23231mm H2O

27inHg

9,323.54893mm H2O

28inHg

9,668.86556mm H2O

29inHg

10,014.18219mm H2O

30inHg

10,359.49881mm H2O

31inHg

10,704.81544mm H2O

32inHg

11,050.13207mm H2O

33inHg

11,395.44870mm H2O

34inHg

11,740.76532mm H2O

35inHg

12,086.08195mm H2O

36inHg

12,431.39858mm H2O

37inHg

12,776.71520mm H2O

38inHg

13,122.03183mm H2O

39inHg

13,467.34846mm H2O

40inHg

13,812.66509mm H2O

41inHg

14,157.98171mm H2O

42inHg

14,503.29834mm H2O

43inHg

14,848.61497mm H2O

44inHg

15,193.93159mm H2O

45inHg

15,539.24822mm H2O

46inHg

15,884.56485mm H2O

47inHg

16,229.88148mm H2O

48inHg

16,575.19810mm H2O

49inHg

16,920.51473mm H2O

50inHg

17,265.83136mm H2O

51inHg

17,611.14799mm H2O

52inHg

17,956.46461mm H2O

53inHg

18,301.78124mm H2O

54inHg

18,647.09787mm H2O

55inHg

18,992.41449mm H2O

56inHg

19,337.73112mm H2O

57inHg

19,683.04775mm H2O

58inHg

20,028.36438mm H2O

59inHg

20,373.68100mm H2O

60inHg

20,718.99763mm H2O

61inHg

21,064.31426mm H2O

62inHg

21,409.63088mm H2O

63inHg

21,754.94751mm H2O

64inHg

22,100.26414mm H2O

65inHg

22,445.58077mm H2O

66inHg

22,790.89739mm H2O

67inHg

23,136.21402mm H2O

68inHg

23,481.53065mm H2O

69inHg

23,826.84727mm H2O

70inHg

24,172.16390mm H2O

71inHg

24,517.48053mm H2O

72inHg

24,862.79716mm H2O

73inHg

25,208.11378mm H2O

74inHg

25,553.43041mm H2O

75inHg

25,898.74704mm H2O

76inHg

26,244.06366mm H2O

77inHg

26,589.38029mm H2O

78inHg

26,934.69692mm H2O

79inHg

27,280.01355mm H2O

Inches of Mercury to Millimeters of water

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