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Atmospheric Pressure

Altitude above sea level – in feet and meter – with barometric and atmospheric pressure in

psia(Pound per square inch absolute),  kg/cm2 and kPa (Kilopascals)

Altitude Above Sea Level

Absolute Atmospheric Pressure

feet

meter

psia

kg/cm2

kPa

0

0

14.696

1.0333

101.33

500

153

14.43

1.015

99.49

1000

305

14.16

0.956

97.63

1500

458

13.91

0.978

95.91

2000

610

13.66

0.960

94.19

2500

763

13.41

0.943

92.46

3000

915

13.17

0.926

90.81

3500

1068

12.93

0.909

89.15

4000

1220

12.69

0.892

87.49

4500

1373

12.46

0.876

85.91

5000

1526

12.23

0.86

84.33

6000

1831

11.78

0.828

81.22

7000

2136

11.34

0.797

78.19

8000

2441

10.91

0.767

75.22

9000

2746

10.5

0.738

72.40

10,000

3050

10.1

0.71

69.64

15,000

4577

8.29

0.583

57.16

20,000

6102

6.76

0.475

46.61

25,000

7628

5.46

0.384

37.65

30,000

9153

4.37

0.307

30.13

35,000

10,679

3.47

0.244

23.93

40,000

12,204

2.73

0.192

18.82

45,000

13,730

2.15

0.151

14.82

50,000

15,255

1.69

0.119

11.65

55,000

16,781

1.33

0.094

9.17

60,000

18,306

1.05

0.074

7.24

70,000

21,357

0.65

0.046

4.49

80,000

24,408

0.41

0.029

2.80

90,000

27,459

0.26

0.018

1.76

100,000

30,510

0.16

0.011

1.12