Convert knot to mile per hour

1 knot = 1.150779 miles per hour. Enter any value below for an exact conversion.

Value in knots

1 kn =

1.150779 mph

miles per hour

Need the reverse? Convert mile per hour to knot →

Formula

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

knot to mile per hour conversion table

1 kn1.150779 mph

2 kn2.301559 mph

3 kn3.452338 mph

5 kn5.753897 mph

10 kn11.50779 mph

20 kn23.01559 mph

25 kn28.76949 mph

50 kn57.53897 mph

100 kn115.0779 mph

1000 kn1150.779 mph

About converting knots to miles per hour

Knots to miles per hour translates the nautical and aviation speed unit into the road-speed unit familiar to US readers. One knot is one nautical mile per hour, about 1.151 mph, so a 20-knot wind is roughly 23 mph.

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 miles per hour are in a knot?

One knot equals 1.150779 miles per hour. So 10 knots is 11.50779 miles per hour. Use the converter above for any value.

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

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

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

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

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