Converting Wind Speeds
Converting Wind Speeds
[ Also, estimating wind speed while on land or wind speed/sea state while at sea ]
[ printable version .pdf ]
Converting Knots (KT) to Miles per Hour (MPH)
(ex. to convert 25 kt, find the 20 on left, then follow across til you intersects column with 5.
That value at the intersection is the miles per hour. So 25 kt is equal to 29 mph.)
| MPH |
0 kt |
1 |
2 |
3 |
4 |
5 |
6 |
7 |
8 |
9 |
| 0 kt |
0 |
1 |
2 |
4 |
5 |
6 |
7 |
8 |
9 |
10 |
| 10 |
12 |
13 |
14 |
15 |
16 |
17 |
18 |
20 |
21 |
22 |
| 20 |
23 |
24 |
25 |
27 |
28 |
29 |
30 |
31 |
32 |
33 |
| 30 |
35 |
36 |
37 |
38 |
39 |
40 |
41 |
43 |
44 |
45 |
| 40 |
46 |
47 |
48 |
50 |
51 |
52 |
53 |
54 |
55 |
56 |
| 50 |
58 |
59 |
60 |
61 |
62 |
63 |
64 |
66 |
67 |
68 |
| 60 |
69 |
70 |
71 |
73 |
74 |
75 |
76 |
77 |
78 |
79 |
| 70 |
81 |
82 |
83 |
84 |
85 |
86 |
88 |
89 |
90 |
91 |
| 80 |
92 |
93 |
94 |
96 |
97 |
98 |
99 |
100 |
101 |
102 |
| 90 |
104 |
105 |
106 |
107 |
108 |
109 |
111 |
112 |
113 |
114 |
| Marine Warnings: |
Gale |
Storm |
Hurricane Force |
Converting Miles per Hour (MPH) to Knots (KT)
(ex. to convert 37 mph, find the 30 on left, then follow across til you intersects column with 7.
That value at the intersection is the miles per hour. So 37 mph is equal to 32 kts)
| KTs |
0 mph |
1 |
2 |
3 |
4 |
5 |
6 |
7 |
8 |
9 |
| 0 mph |
0 |
1 |
2 |
3 |
4 |
4 |
5 |
6 |
7 |
8 |
| 10 |
9 |
10 |
10 |
11 |
12 |
13 |
14 |
15 |
16 |
17 |
| 20 |
17 |
18 |
19 |
20 |
21 |
22 |
23 |
24 |
24 |
25 |
| 30 |
26 |
27 |
28 |
29 |
30 |
30 |
31 |
32 |
33 |
34 |
| 40 |
35 |
36 |
37 |
37 |
38 |
39 |
40 |
41 |
42 |
43 |
| 50 |
43 |
44 |
45 |
46 |
47 |
48 |
49 |
50 |
50 |
51 |
| 60 |
52 |
53 |
54 |
55 |
56 |
57 |
57 |
58 |
59 |
60 |
| 70 |
61 |
62 |
63 |
63 |
64 |
65 |
66 |
67 |
68 |
69 |
| 80 |
70 |
70 |
71 |
72 |
73 |
74 |
75 |
76 |
77 |
77 |
| 90 |
78 |
79 |
80 |
81 |
82 |
83 |
83 |
84 |
85 |
86 |
| Marine Warnings: |
Gale |
Storm |
Hurricane Force |
|
www.weather.gov 
