Determine your altitude by contacting a local weather station or by using another reference source.

4,267

14,000

56–64

8.1–9.3

3,962

13,000

58–66

8.4–9.6

3,658

12,000

61–69

8.8–10.0

3,353

11,000

64–72

9.3–10.4

3,048

10,000

66–74

9.6–10.7

2,743

9,000

69–77

10.0–11.2

2,438

8,000

71–79

10.3–11.5

2,134

7,000

74–82

10.7–11.9

1,829

6,000

77–85

11.2–12.3

1,524

5,000

80–88

11.6–12.8

1,219

4,000

83–91

12.0–13.2

914

3,000

87–95

12.6–13.8

610

2,000

90–98

13.1–14.2

305

1,000

94–102

13.6–14.8

0

0 Sea Level

96–104

13.9–15.1

−305

−1,000

101–105

14.6–15.2