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Knots to Mph Converter.

kn
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mph
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Reference Table

km/h mph m/s ft/s kn
0.185199840.11507784540.05144440.16878083990.1
1.8519981.1507780.5144441.6878081
18.51998411.5077855.1444416.87808410
185.19984115.07784551.4444168.78084100
1851.99841150.7785514.4441687.80841000
18519.98411507.78455144.4416878.08410000
185199.84115077.845451444.4168780.8399100000

How to convert knots to mph

Formula. mph = knots × 1.15078.

Relationship. 1 knot = 1.15078 mph.

Worked example. 100 kn = 115.077845 mph.

knots to mph conversion table

kn mph
1 1.150778
5 5.753892
10 11.507785
15 17.261677
20 23.015569
25 28.769461
30 34.523354
35 40.277246
40 46.031138
45 51.78503
50 57.538923
60 69.046707
70 80.554492
80 92.062276
90 103.570061
100 115.077845
120 138.093414
150 172.616768
180 207.140122
200 230.155691
250 287.694613
300 345.233536
400 460.311382
500 575.389227
600 690.467072

FAQ

Frequently Asked Questions

How do I convert knots to mph?
Multiply by 1.15078. For example, 100 knots × 1.15078 ≈ 115.1 mph.
What is a knot?
One nautical mile per hour. A nautical mile is 1,852 metres — slightly longer than a statute mile — so a knot is a little faster than 1 mph.
Why do ships and aircraft use knots?
Because a nautical mile equals one minute of latitude, so a navigator can read distance directly off a chart's latitude scale and convert to time without extra arithmetic. The convention long predates satellite navigation and has simply stuck.
How fast is a hurricane in knots?
A Category 1 hurricane starts at 64 knots (74 mph), and Category 5 begins at 137 knots (157 mph). Marine and aviation forecasts quote wind in knots, which is why hurricane thresholds look like odd numbers in mph.

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