Speed converter
Kilometer per hour to Knot Converter
Convert km/h to kn or reverse with one click. Type a value below for an instant result.
Kilometer per hour km/h
Knot kn
km/h → kn · runs in your browser, no server
How to convert kilometer per hour to knot
Kilometer per hour (km/h) and Knot (kn) both measure speed. Whether you are studying, traveling, cooking, or working on a project, converting between them should be fast and accurate.
Looking for the opposite direction? See our dedicated knot to kilometer per hour converter — same formula reversed, with content written for that direction.
The standard relationship used on this page means that 1 kilometer per hour equals 0.539957 kn. Enter any number in the calculator — use the swap button to reverse the direction without leaving the page.
Converting 100 km/h gives 53.995770 kn. This is a practical reference when switching between kilometer per hour and knot for driving abroad, aviation, running pace, and wind reports.
Need knot to kilometer per hour instead? Try our Knot to Kilometer per hour converter. knots → kmh
When you'll use this
- Converting a car, train, or land vehicle's km/h speed spec into knots for a marine or aviation context
- Converting a weather station's km/h wind speed reading into knots for sailors planning a trip
- Understanding a ferry or cargo ship's speed, sometimes advertised in km/h, in the knots used throughout the maritime industry
- Converting a general weather forecast's km/h wind speed into knots for small-boat or kitesurfing conditions
- Checking an international storm report's km/h wind figures against the knots used by aviation and marine forecasters
Practical note
Sailors and watersports enthusiasts use this page to translate general weather forecasts (given in km/h in most metric countries) into the knots they actually plan around: a forecast predicting "30 km/h" winds converts to about 16.2 knots, a wind strength that many recreational sailors and kitesurfers would recognize as solid, sporty conditions rather than needing to mentally convert km/h into a feel for wind strength on the water. It also helps when researching ferry or cargo ship speeds, since maritime specs are traditionally given in knots even when a country's general speed reporting (like road speed limits) uses km/h.
Tips
- Divide km/h by about 1.852 to get knots — the maritime and aviation industries use knots specifically because it ties directly to nautical miles and global navigation.
- A weather forecast reporting "40 km/h" winds converts to about 21.6 knots — right around the threshold many small-boat sailors consider the upper edge of comfortable sailing conditions.
- Ferries and commercial ships often quote cruising speed in knots even in countries that use km/h for everything else — always check which unit a maritime spec sheet actually uses before comparing.
Read our full guide: Nautical miles and knots explained
km/h to kn conversion table
| km/h | kn |
|---|---|
| 1 | 0.539957 |
| 5 | 2.699788 |
| 10 | 5.399577 |
| 30 | 16.198731 |
| 60 | 32.397462 |
| 100 | 53.995770 |
| 120 | 64.794924 |
kn to km/h conversion table
Or click the swap button in the converter to switch from kn to km/h.
| kn | km/h |
|---|---|
| 1 | 1.851996 |
| 5 | 9.259984 |
| 15 | 27.779953 |
| 30 | 55.559907 |
| 55 | 101.859830 |
| 60 | 111.119815 |
| 100 | 185.199691 |
Frequently asked questions
How many knots are in 1 kilometer per hour? +
One kilometer per hour equals 0.539957 kn. Use the converter above for any value — results are calculated locally with full precision.
How do I convert km/h to kn? +
Use the formula: kn = km/h × 0.539957. Enter your value in the calculator and the result appears instantly. Click the swap button to convert kn back to km/h.
How many kilometer per hours are in 1 knot? +
One knot equals 1.851996 km/h. Swap the converter direction to work backwards from kn to km/h.
What is 10 km/h in kn? +
10 km/h is 5.399577 kn. See the conversion table on this page for more common values.
When would I convert kilometer per hour to knot? +
This conversion is useful for driving abroad, aviation, running pace, and wind reports. ConvertHub runs entirely in your browser — no data is uploaded to any server.
Is kilometer per hour to knot the same as knot to kilometer per hour? +
They are inverse operations. This page focuses on km/h → kn with examples and tables for that direction. For kn → km/h, use our separate knot to kilometer per hour converter page.