Unit converter — Velocity
Knots to kilometers per hour converter
Convert knots (kn) to kilometers per hour (km/h). Source-cited conversion factor, exact to the displayed precision.
Results are mathematically exact for the displayed precision. How we calculate.
Convert knots to kilometers per hour— the formula
Knots convert to kilometers per hour by multiplying by the published conversion factor. The factor below is exact to the precision shown, sourced from the citation under the formula.
km/h = kn × 1.852
kn = km/h × 0.539957
m/s: SI derived (m × s⁻¹). 1 km/h = 1000/3600 m/s; 1 mph = 0.44704 m/s exactly; 1 knot = 1852/3600 m/s exactly (international nautical mile).
Frequently asked questions
How many kilometers per hour are in a knot?
1 kn = 1.852 km/h. To convert any amount, multiply by 1.852.How do you convert knots to kilometers per hour?
Multiply the number of knots by 1.852 to get kilometers per hour. The formula is shown in the "How it's calculated" section above.Where does the conversion factor come from?
It's a published international standard. Most are defined exactly by international agreement (e.g. 1 inch = 25.4 mm exactly, 1 lb = 0.45359237 kg exactly). Source citations are listed under the formula above.