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

 

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