Knots to km/h
Convert knots to km/h and back. Used for vessels, aircraft and marine wind forecasts.
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Common values
Formula
km/h = kn × 1.852
One knot is 1.852 km/h — one nautical mile per hour. Airliners cruise near 470 knots, about 870 km/h.
Frequently asked questions
Q. How many km/h is 1 kn?
1 kn is 1.85 km/h, and 10 kn is 18.52 km/h. Type any value in the box above to convert instantly.
Q. And how many kn is 1 km/h?
1 km/h is 0.54 kn. This converter works both ways, so typing in the right box updates the left one.
Q. Where is this unit used?
One knot is 1.852 km/h — one nautical mile per hour. Airliners cruise near 470 knots, about 870 km/h.
Other converters
Traditional units (geun, doe, majigi and so on) vary by region and product.