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Unit Conversion Calculators

Knots to MPH Calculator

Convert a speed in knots to miles per hour (mph).

kn
Miles per hour —
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About the Knots to MPH Calculator

A knot is a unit of speed equal to one nautical mile per hour, used in maritime and aviation navigation. Since one nautical mile equals exactly 1.852 km and one mile equals exactly 1.609344 km, one knot equals approximately 1.15078 mph.

Formula: MPH = Knots × (1.852 ÷ 1.609344)

Used to convert wind speed, boat speed and aircraft airspeed readings from knots into the more familiar miles per hour.

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