Knots to Kilometers Per Hour
A knot is one nautical mile per hour, about 1.15 mph, the standard speed unit in marine and air navigation. Kilometers per hour is the standard speed unit on road signs and speedometers outside the US and UK. 1 kn equals 1.852 km/h, so converting between them is a matter of multiplying by that fixed factor — type any value into the converter below and both sides update instantly as you type.
Both units belong to speed, measured here against speed's base unit (m/s) — every other speed unit on this site converts through that same reference point, which is why the table below can also be read as a quick cross-check against nearby values.
Formula
km/h = kn × 1.852
kn = km/h × ≈0.539957
Worked example: 5 kn × 1.852 = 9.26 km/h.
Conversion table
| Knot (kn) | Kilometer per hour (km/h) |
|---|---|
| 1 kn | 1.852 km/h |
| 2 kn | 3.704 km/h |
| 3 kn | 5.556 km/h |
| 5 kn | 9.26 km/h |
| 10 kn | 18.52 km/h |
| 20 kn | 37.04 km/h |
| 25 kn | 46.3 km/h |
| 50 kn | 92.6 km/h |
| 100 kn | 185.2 km/h |
| 250 kn | 463 km/h |
| 500 kn | 926 km/h |
| 1,000 kn | 1,852 km/h |
Frequently asked
- How many Kilometers per hour in a knot?
- 1 kn equals 1.852 km/h.
- How do I convert Knots to Kilometers per hour?
- Multiply the value in kn by 1.852 to get km/h. The converter above does this instantly as you type.
- Is the conversion exact?
- Yes — Knot and Kilometer per hour are both defined by a fixed conversion factor to speed's base unit (m/s), so the result shown is exact to the precision displayed, not an approximation.