|
Distance to Horizon for
Various Heights of Eye
|
Height in Feet / Distance in Nautical Miles
|
Height / Distance
|
|
Height / Distance
|
|
1 / 1.1
|
|
49 / 8.0
|
|
2 / 1.6
|
|
50 / 8.1
|
|
3 / 2.0
|
|
55 / 8.5
|
|
4 / 2.3
|
|
60 / 8.9
|
|
5 / 2.6
|
|
65 / 9.2
|
|
6 / 2.8
|
|
70 / 9.6
|
|
7 / 3.0
|
|
75 / 9.9
|
|
8 / 3.2
|
|
80 / 10.2
|
|
9 / 3.4
|
|
85 / 10.5
|
|
10 / 3.6
|
|
90 / 10.9
|
|
11 / 3.8
|
|
95 / 11.2
|
|
12 / 4.0
|
|
100 / 11.4
|
|
13 / 4.1
|
|
105 / 11.7
|
|
14 / 4.3
|
|
110 / 12.0
|
|
15 / 4.4
|
|
115 / 12.3
|
|
16 / 4.6
|
|
120 / 12.5
|
|
17 / 4.7
|
|
125 / 12.8
|
|
18 / 4.9
|
|
130 / 13.0
|
|
19 / 5.0
|
|
135 / 13.3
|
|
20 / 5.1
|
|
140 / 13.5
|
|
21 / 5.2
|
|
145 / 13.8
|
|
22 / 5.4
|
|
150 / 14.0
|
|
23 / 5.5
|
|
160 / 14.5
|
|
24 / 5.6
|
|
170 / 14.9
|
|
25 / 5.7
|
|
180 / 15.3
|
|
26 / 5.8
|
|
190 / 15.8
|
|
27 / 5.9
|
|
200 / 16.2
|
|
28 / 6.1
|
|
210 / 16.6
|
|
29 / 6.2
|
|
220 / 17.0
|
|
30 / 6.3
|
|
230 / 17.3
|
|
31 / 6.4
|
|
240 / 17.7
|
|
32 / 6.5
|
|
250 / 18.1
|
|
33 / 6.6
|
|
260 / 18.4
|
|
34 / 6.7
|
|
270 / 18.8
|
|
35 / 6.8
|
|
280 / 19.1
|
|
36 / 6.9
|
|
290 / 19.5
|
|
37 / 7.0
|
|
300 / 19.8
|
|
38 / 7.1
|
|
310 / 20.1
|
|
39 / 7.1
|
|
320 / 20.5
|
|
40 / 7.2
|
|
330 / 20.8
|
|
41 / 7.3
|
|
340 / 21.1
|
|
42 / 7.4
|
|
350 / 21.4
|
|
43 / 7.5
|
|
360 / 21.7
|
|
44 / 7.6
|
|
370 / 22.0
|
|
45 / 7.7
|
|
380 / 22.3
|
|
46 / 7.8
|
|
390 / 22.6
|
|
47 / 7.8
|
|
400 / 22.9
|
|
48 / 7.9
|
|
410 / 23.2
|
|