Connexion Vacuum Pressure Conversion Chart  
 

Torr

mmHgA

psia

"HgA

"HgV

Atm.

"H2O(a)

"H2O(v)

kg/sq.cm

kPa

mBar

760

760

14.7

29.92

0.00

1.00

406.8

0.0

1.03

101.31

1013.3

700

700

13.54

27.56

2.36

0.92

374.7

32.1

0.95

93.31

933.3

600

600

11.61

23.62

6.30

0.79

321.2

85.6

0.82

79.98

800.0

500

500

9.67

19.69

10.24

0.66

267.7

139.2

0.68

66.65

666.7

400

400

7.74

15.75

14.17

0.53

214.1

192.7

0.54

53.32

533.3

300

300

5.80

11.81

18.11

0.39

160.6

246.2

0.41

39.99

400.0

250

250

4.84

9.84

20.08

0.33

133.8

273.0

0.34

33.33

333.3

200

200

3.87

7.87

22.05

0.26

107.1

299.8

0.27

26.66

266.7

175

175

3.38

6.89

23.03

0.23

93.7

313.2

0.24

23.33

233.3

150

150

2.90

5.91

24.02

0.20

80.3

326.5

0.20

20.00

200

125

125

2.42

4.92

25.00

0.16

66.9

339.9

0.17

16.66

166.7

100

100

1.93

3.94

25.98

0.13

53.5

353.3

0.14

13.33

133.3

90

90

1.74

3.54

26.38

0.12

48.2

358.7

0.12

12.00

120.0

80

80

1.55

3.15

26.77

0.11

42.8

364.0

0.11

10.66

106.7

70

70

1.35

2.76

27.17

0.09

37.5

369.4

0.10

9.33

93.3

60

60

1.16

2.36

27.56

0.08

32.1

374.7

0.08

8.00

80.0

51.7

51.7

1.00

2.04

27.89

0.07

27.7

379.2

0.07

6.89

68.9

50

50

0.97

1.97

27.95

0.07

26.8

380.1

0.07

6.67

66.7

40

40

0.77

1.57

28.35

0.05

21.4

385.4

0.05

5.33

53.3

30

30

0.58

1.18

28.74

0.04

16.1

390.8

0.04

4.00

40.0

25.4

25.4

0.49

1.00

28.92

0.03

13.6

393.2

0.03

3.39

33.9

25

25

0.48

0.98

28.94

0.03

13.4

393.5

0.03

3.33

33.3

20

20

0.39

0.79

29.13

0.03

10.7

396.1

0.03

2.67

26.7

15

15

0.29

0.59

29.33

0.02

8.0

398.8

0.02

2.00

20.0

10

10

0.19

0.39

29.53

0.01

5.4

401.5

0.01

1.33

13.3

7.5

7.5

0.15

0.30

29.63

0.01

4.0

402.8

0.01

1.00

10.0

5

5

0.10

0.20

29.72

0.01

2.7

404.2

0.01

0.67

6.7

2.5

2.5

0.05

0.10

29.82

0.00

1.3

405.5

0.00

0.33

3.3

1

1

0.02

0.04

29.88

0.00

0.5

406.3

0.00

0.13