Knots to Kilometers Per Hour
Convert knots to kilometers per hour instantly — one knot is 1.852 kilometers per hour.
| Knots | Kilometers Per Hour |
|---|---|
| 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 |
| 25 kn | 46.3 km/h |
| 50 kn | 92.6 km/h |
| 100 kn | 185.2 km/h |
How to use
- Enter a value in the Knots field.
- The Kilometers Per Hour figure appears immediately — no button to press.
- Typing in the Kilometers Per Hour field converts back to Knots the same way.
- Use the reference table for the values that come up most often.
Knots to Kilometers Per Hour formula
The factor from knots to kilometers per hour is 1.852.
km/h = kn × 1.852
Put another way, one knot is exactly 463/250 kilometers per hour.
Why this factor: the knot and the kilometer per hour are both defined against the meter per second, so dividing one definition by the other gives 1.852 directly. Both definitions are set out in full below.
To go the other way, divide by 1.852 — or use the Kilometers Per Hour to Knots converter, which is the same calculation reversed.
Worked example
Given 60 kn, multiplying by 1.852 yields 111.12 km/h.
60 kn × 1.852 = 111.12 km/h
The converter above does this for any value you type, in either direction.
What is a knot?
A knot is one nautical mile per hour, the speed unit of ships and aircraft.
Definition: Exactly 1,852 meters per 3,600 seconds, so about 0.514444 m/s.
Where it is used: Marine and aviation speeds, and wind speed in forecasts for sailors and pilots.
Worth knowing: Say 'knots', never 'knots per hour' — the 'per hour' is already inside the unit.
What is a kilometer per hour?
Kilometers per hour is the everyday speed unit for road traffic in most of the world.
Definition: Exactly 1,000 meters per 3,600 seconds, so 1 km/h is exactly 1/3.6 m/s.
Where it is used: Speed limits, vehicle speedometers, and weather wind speeds outside the US and UK.
Worth knowing: A handy shortcut: divide km/h by 3.6 for m/s, or multiply m/s by 3.6 to go the other way.
Knots vs Kilometers Per Hour
The knot is a specialized unit while the kilometer per hour is a metric unit. That is why the factor between them is not a round number: the two systems were defined independently and only later tied together by exact agreement.
Frequently asked questions
How many kilometers per hour are in a knot?
One knot equals 1.852 kilometers per hour.
What is the formula to convert knots to kilometers per hour?
Multiply the number of knots by 1.852. To reverse it, divide by 1.852 instead.
How do I convert kilometers per hour back to knots?
Divide by 1.852, which is the same as multiplying by 0.539956803.
How many kilometers per hour are in 10 knots?
10 kn works out to 18.52 km/h.
Is there anything to watch out for with knots?
Say 'knots', never 'knots per hour' — the 'per hour' is already inside the unit.
How is the knot defined?
Exactly 1,852 meters per 3,600 seconds, so about 0.514444 m/s.