Convert mile per hour to knot

1 mile per hour = 0.8689762 knots. Enter any value below for an exact conversion.

Value in miles per hour

1 mph =

0.8689762 kn

knots

Need the reverse? Convert knot to mile per hour →

Formula

1 mile per hour = 0.8689762 knots
knot = miles per hour × 0.8689762
mile per hour = knots × 1.150779

mile per hour to knot conversion table

1 mph0.8689762 kn

2 mph1.737952 kn

3 mph2.606929 kn

5 mph4.344881 kn

10 mph8.689762 kn

20 mph17.37952 kn

25 mph21.72441 kn

50 mph43.44881 kn

100 mph86.89762 kn

1000 mph868.9762 kn

About converting miles per hour to knots

Miles per hour to knots is used by sailors and pilots converting a land or forecast speed into nautical terms. Divide by about 1.151. A 60 mph gust is around 52 knots.

Method & sources

Conversions use exact legal definitions rather than rounded approximations: 1 inch = 2.54 cm and 1 pound = 0.45359237 kg (fixed by the 1959 international yard and pound agreement), 1 mile = 1.609344 km, and 1 US liquid gallon = 3.785411784 litres. Temperatures convert with °F = °C × 9⁄5 + 32 and K = °C + 273.15. Results are rounded only for display.

Page last updated: October 1, 2026

Frequently asked questions

How many knots are in a mile per hour?

One mile per hour equals 0.8689762 knots. So 10 miles per hour is 8.689762 knots. Use the converter above for any value.

What is the formula to convert miles per hour to knots?

1 mile per hour = 0.8689762 knots knot = miles per hour × 0.8689762 mile per hour = knots × 1.150779

Is the mile per hour-to-knot conversion exact?

Yes. The conversion factor between miles per hour and knots is defined exactly, so results are precise — only rounded for display.

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