Knot to Kilometer per Hour Converter
1 kn = 1.852 km/h — convert instantly with formula and table.
A knot is one nautical mile per hour, and a nautical mile is 1,852 m by definition, so 1 knot = 1.852 km/h exactly. Ships, aircraft and weather forecasts use knots; road and everyday speeds use km/h — this converter translates between the two.
Where you'll meet this conversion
- A gale warning of 40 knots means 74 km/h; hurricane force starts at 64 knots (119 km/h).
- An airliner cruising at 480 knots is doing about 890 km/h.
- A sailing yacht averaging 6 knots covers 11 km in an hour.
Common mistake
Treating a knot as a land mile per hour. It is a nautical mile per hour, and the nautical mile is 15% longer than the statute mile: 1 knot = 1.151 mph, not 1 mph.
Quick answer: one knot equals 1.852 kilometers per hour. So to convert knots to kilometers per hour, multiply by 1.852.
How to convert knots to kilometers per hour
kilometers per hour = knots × 1.8519999997
The knot — one nautical mile per hour — is the speed unit of ships, aircraft and wind. It ties neatly to navigation because one nautical mile is one minute of latitude.
Kilometers per hour is the road-speed unit of most of the world; 100 km/h is the classic highway limit, equal to about 62 mph.
Knot to Kilometer per hour conversion table
| Knot (kn) | Kilometer per hour (km/h) |
|---|---|
| 0.01 kn | 0.01852 km/h |
| 0.1 kn | 0.1852 km/h |
| 0.25 kn | 0.463 km/h |
| 0.4 kn | 0.7408 km/h |
| 0.75 kn | 1.389 km/h |
| 1.25 kn | 2.315 km/h |
| 1.75 kn | 3.241 km/h |
| 2.5 kn | 4.63 km/h |
| 3.5 kn | 6.482 km/h |
| 4.5 kn | 8.334 km/h |
| 6 kn | 11.112 km/h |
| 8 kn | 14.816 km/h |
| 10 kn | 18.52 km/h |
| 12 kn | 22.224 km/h |
| 14 kn | 25.928 km/h |
| 16 kn | 29.632 km/h |
| 18 kn | 33.336 km/h |
| 20 kn | 37.04 km/h |
| 24 kn | 44.448 km/h |
| 26 kn | 48.152 km/h |
| 30 kn | 55.56 km/h |
| 35 kn | 64.82 km/h |
| 45 kn | 83.34 km/h |
| 55 kn | 101.86 km/h |
| 65 kn | 120.38 km/h |
| 75 kn | 138.9 km/h |
| 85 kn | 157.42 km/h |
| 95 kn | 175.94 km/h |
| 110 kn | 203.72 km/h |
| 125 kn | 231.5 km/h |
| 175 kn | 324.1 km/h |
| 250 kn | 463 km/h |
| 350 kn | 648.2 km/h |
| 450 kn | 833.4 km/h |
| 600 kn | 1,111.2 km/h |
| 750 kn | 1,389 km/h |
| 900 kn | 1,666.8 km/h |
| 1,500 kn | 2,778 km/h |
| 2,500 kn | 4,630 km/h |
| 10,000 kn | 18,520 km/h |
Need the opposite direction? Use the Kilometer per hour to Knot converter, or read our complete guide to speed conversions for every formula in one place.
Frequently asked questions
How many kilometers per hour are in one knot?
One knot equals 1.852 kilometers per hour. Multiply any knot value by 1.852 to get kilometers per hour.
What is 10 knots in kilometers per hour?
10 knots equal 18.52 kilometers per hour (10 × 1.852).
Is the knot to kilometer per hour conversion exact?
The conversion factor used here (1.8519999997) is based on the internationally agreed definitions of both units, so results are exact up to rounding of the final decimal places.
Is my data stored when I use this converter?
No. The conversion runs entirely in your browser with JavaScript — nothing you type is sent to a server, logged or stored.