Knot to Kilometer per Hour

Convert knot to kilometer per hour instantly. Type in either field — results update live.

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Speed Knot Kilometer per Hour

1 knot = 1.8519999997 kilometers per hour

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Format

Selected kn values converted to km/h using the exact factor from this tool.

Exact conversion factors in both directions, plus a worked example.

1 kn = 1.8519999997 km/h

1 km/h = 0.5399568035 kn

To convert knot to kilometer per hour, multiply by 1.8519999997.

To convert kilometer per hour to knot, multiply by 0.5399568035.

Example: convert 10 kn to km/h

10 × 1.8519999997 = 18.5199999969 km/h

Short background on the units used in this conversion.

One knot is one nautical mile per hour, defined as exactly 1,852 meters per hour (0.514444 m/s).

Knots are standard for ships, aircraft airspeed, and marine weather forecasts worldwide.

Kilometers per hour express how many kilometers are covered in one hour — 1 km/h equals 1/3.6 m/s.

Kilometers per hour are the default on vehicle speedometers and road signs outside the United States.

How many kilometers per hour are in one knot?

One knot equals 1.8519999997 kilometers per hour. Multiply your knots value by 1.8519999997 to convert to kilometers per hour.

What is the conversion formula?

km/h = kn × 1.8519999997

The reverse is kn = km/h × 0.5399568035, using the same exact factors as this converter.

Is this Knot to Kilometer per Hour converter private?

Yes. All calculations run locally in your browser. Nothing you type is sent to a server.

Jump to any speed conversion starting from knot — including the reverse direction and every other unit in our dataset.