Convert Between different Pressure Units


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% VACUUM

inHg (rel)

ft H2O (rel)

Torr (abs)
mmHg (abs)

mbar (abs)

psia (abs)

0%

0.00

0.00

760.0

1013.3

14.70

10%

2.99

3.39

684.0

911.7

13.23

20%

5.98

6.78

608.0

810.4

11.76

30%

8.98

10.17

532.0

709.1

10.29

40%

11.97

13.56

456.0

607.8

8.82

50%

14.96

16.95

380.0

506.5

7.35

60%

17.95

20.34

304.0

405.2

5.88

70%

20.94

23.73

228.0

303.9

4.41

80%

23.94

27.12

152.0

202.6

2.94

90%

26.93

30.51

76.0

101.3

1.47

91%

27.23

30.85

68.4

91.2

1.32

92%

27.53

31.19

60.8

81.0

1.18

93%

27.83

31.53

53.2

70.9

1.03

94%

28.13

31.87

45.6

60.8

0.88

95%

28.42

32.21

38.0

50.6

0.73

96%

28.72

32.54

30.4

40.5

0.59

97%

29.02

32.88

22.8

30.4

0.44

98%

29.32

33.22

15.2

20.3

0.29

99%

29.62

33.56

7.6

10.1

0.15

99.1%

29.65

33.59

6.8

9.1

0.13

99.2%

29.68

33.63

6.1

8.1

0.12

99.3%

29.71

33.66

5.3

7.1

0.10

99.4%

29.74

33.70

4.6

6.1

0.09

99.5%

29.77

33.73

3.8

5.1

0.07

99.6%

29.80

33.76

3.0

4.1

0.06

99.7%

29.83

33.80

2.3

3.0

0.04

99.8%

29.86

33.83

1.5

2.0

0.03

99.9%

29.89

33.87

0.8

1.0

0.01

<100%

29.92

33.90

0.0

0.0

0.00

JAVASCRIPT CALCULATOR

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LENGTH to mm to cm to m to ft to in
from mm 1 .1 .001 .0033 .0394
from cm 10 1 .01 .0328 .0394
from m 1000 100 1 3.281 39.37
from ft 304.8 30.48 .304 1 12
from in 25.4 2.54 .0254 .0833 1

Temperature: F=9/5C+32 C=5/9(F-32)

VOLUME to cc to L to cu in to cu ft to US gal
from cc 1 .001 .061 .0000353 .00026
from L 1000 1 61 .0353 .264
from cu in 16.39 .0164 1 .00058 .0043
from cu ft 28317 28.32 1730 1 7.47
from US gal 3785.4 3.785 .1337 1

PRESSURE to bar to lb/sq in to atm to mm Hg
Torr
to m Hg to in Hg to ft water to m water to in water
from bar 1 14.5 .986 750 .75 29.53 33.46 10.2 401.5
from lb/sq in .068 1 .068 51.7 .051 2.036 2.307 .703 27.68
from atm 1.01 14.7 1 760 .76 29.921 33.9 10.3 406.8
mm Hg/Torr .0013 .019 .001 1 .001 .039 .045 .0135 .535
from m Hg 1.33 19.34 1.32 1000 1 39.37 44.6 13.6 535.25
from in Hg .034 .491 .033 25.4 .0254 1 1.133 .345 13.59
from ft water .029 .433 .0259 22.42 .022 .882 1 .305 12
from m water .098 1.422 .096 73.55 .0735 2.89 3.28 1 39.37
from in water .00249 .0361 .00245 1.868 .00186 .073 .083 .0225 1