Effect of altitude and temperature on air density

Multiply standard air density (0.075 lbm/ft3) by the factor in body of table to obtain density

 

Altitude (feet above sea level)

-1000

Sea level

1000

2000

3000

4000

5000

6000

7000

8000

9000

10,000

Barometer

in Hg

31.02

29.92

28.86

27.82

26.82

25.84

24.90

23.98

23.09

22.22

21.39

20.58

in WG

422.2

407.5

392.8

378.6

365.0

351.7

338.9

326.4

314.3

302.1

291.1

280.1

Air temp.
°F

-40

1.31

1.26

1.22

1.17

1.13

1.09

1.05

1.01

0.97

0.93

0.90

0.87

0

1.19

1.15

1.11

1.07

1.03

0.99

0.95

0.91

0.89

0.85

0.82

0.79

40

1.10

1.06

1.02

0.99

0.95

0.92

0.88

0.85

0.82

0.79

0.76

0.73

70

1.04

1.00

0.96

0.93

0.89

0.86

0.83

0.80

0.77

0.74

0.71

0.69

100

0.98

0.95

0.92

0.88

0.85

0.81

0.78

0.75

0.73

0.70

0.68

0.65

150

0.90

0.87

0.84

0.81

0.78

0.75

0.72

0.69

0.67

0.65

0.62

0.60

200

0.83

0.80

0.77

0.74

0.71

0.69

0.66

0.64

0.62

0.60

0.57

0.55

250

0.77

0.75

0.72

0.70

0.67

0.64

0.62

0.60

0.58

0.56

0.58

0.51

300

0.72

0.70

0.67

0.65

0.62

0.60

0.58

0.56

0.54

0.52

0.50

0.48

350

0.68

0.65

0.62

0.60

0.58

0.56

0.54

0.52

0.51

0.49

0.47

0.45

400

0.64

0.62

0.60

0.57

0.55

0.53

0.51

0.49

0.48

0.46

0.44

0.42

450

0.60

0.58

0.56

0.54

0.52

0.50

0.48

0.46

0.45

0.43

0.42

0.40

500

0.57

0.55

0.53

0.51

0.49

0.47

0.45

0.44

0.43

0.41

0.39

0.38

550

0.54

0.53

0.51

0.49

0.47

0.45

0.44

0.42

0.41

0.39

0.38

0.36

600

0.52

0.50

0.48

0.46

0.45

0.43

0.41

0.40

0.39

0.37

0.35

0.34

700

0.47

0.46

0.44

0.43

0.41

0.39

0.38

0.37

0.35

0.34

0.33

0.32

800

0.44

0.42

0.40

0.39

0.37

0.36

0.35

0.33

0.32

0.31

0.30

0.29

900

0.40

0.39

0.37

0.36

0.35

0.33

0.32

0.31

0.30

0.29

0.28

0.27

1000

0.37

0.36

0.35

0.33

0.32

0.31

0.30

0.29

0.27

0.26

0.26

0.25