kn

What is a Knot?

Speed Unit

Definition

A knot is a unit of speed equal to one nautical mile per hour, approximately 1.852 km/h or 1.151 mph.

Popular Knot Conversions

Most common conversions from Knots

1 kn = 0.514444 m/s Knot to Meters per Second 1 kn = 1.852 km/h Knot to Kilometers per Hour 1 kn = 1.1508 mph Knot to Miles per Hour 1 kn = 1.6878 ft/s Knot to Feet per Second 1 kn = 0.0015117811 Ma Knot to Mach

History

The knot originated from the method of measuring ship speed by counting knots in a rope as it was let out over a fixed time.

Common Uses

Maritime navigation
Aviation
Meteorology (wind speed)
Sailing and boating

Fun Facts

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The name comes from knots tied in a ship's log line

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A Category 5 hurricane has winds over 137 knots

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Commercial aircraft cruise at about 450-500 knots

All Knot Conversions

Knots to Meters per Second kn → m/s Knots to Kilometers per Hour kn → km/h Knots to Miles per Hour kn → mph Knots to Feet per Second kn → ft/s Knots to Mach kn → Ma