Knots to Kilometers per Hour Converter
One Knot equals 1.851999997 Kilometers per Hour (1 knot = 1.851999997 kph). Multiply a Knot value by 1.851999997 to get the equivalent in Kilometers per Hour. Enter your value in the calculator above. The formula and examples below show how to calculate it by hand.
Formula
kph = knot × 1.851999997
Multiply the Knot value by 1.851999997 to get the equivalent value in Kilometers per Hour.
Example Conversions
1 Knot (knot)
1.851999997 Kilometers per Hour (kph)
5 Knot (knot)
9.259999985 Kilometers per Hour (kph)
10 Knot (knot)
18.51999997 Kilometers per Hour (kph)
25 Knot (knot)
46.29999992 Kilometers per Hour (kph)
100 Knot (knot)
185.1999997 Kilometers per Hour (kph)
Conversion Table
| Knot (knot) | Kilometers per Hour (kph) |
|---|---|
| 0.1 | 0.1851999997 |
| 0.5 | 0.9259999985 |
| 1 | 1.851999997 |
| 2 | 3.703999994 |
| 5 | 9.259999985 |
| 10 | 18.51999997 |
| 25 | 46.29999992 |
| 50 | 92.59999985 |
| 100 | 185.1999997 |
| 250 | 462.9999992 |
| 500 | 925.9999985 |
| 1000 | 1851.999997 |
How to Convert Manually
Use these steps to convert Knot values to Kilometers per Hour without the calculator.
- Write down the value in Knot (knot) that you want to convert.
- Multiply that value by 1.851999997.
- For example, 10 Knots × 1.851999997 = 18.51999997 Kilometers per Hour.
- Label the result as Kilometers per Hour (kph).
Relative Size Comparison
This chart shows the visual difference in size between exactly one Knot and one Kilometers per Hour.
About Knot and Kilometers per Hour
The knot is one nautical mile per hour, exactly 1.852 km/h. Ships, aircraft, and weather charts use knots because the nautical mile maps onto latitude minutes. The kilometer per hour is the road speed unit of most of the world, exactly 1/3.6 of a meter per second. Speed limits, car speedometers, and rail and cycling speeds use it outside the US and UK. One Knot equals 1.851999997 Kilometers per Hour (1 knot = 1.851999997 kph). Knot is used in ship and boat speeds and in aircraft airspeed. Kilometers per Hour is used in road speed limits outside the US and UK.
Precision and Rounding:Most speed factors are exact because they derive from exact length and time definitions (1 mph = 1.609344 km/h precisely); Mach is the exception, since the speed of sound varies with temperature and altitude. The figure used here is 343 m/s, the sea-level value at 20 °C. One decimal place covers driving and running; aviation and ballistics carry more.
Conversion factors per NIST Special Publication 811 and the BIPM SI Brochure (9th edition) (reference).
Worked Example
15Knots equals27.77999995Kilometers per Hour.
15 knot × 1.851999997 = 27.77999995 kph
FAQ
How do I convert Knot to Kilometers per Hour?
Multiply the Knot value by 1.851999997 to get the equivalent value in Kilometers per Hour.
What is the formula for Knot to Kilometers per Hour?
The formula is kph = knot × 1.851999997.
How many Kilometers per Hour are in 1 Knot?
1 Knot equals 1.851999997 Kilometers per Hour.
Can I convert Kilometers per Hour back to Knot?
Yes. 1 Kilometers per Hour equals 0.5399568044 Knots, and the related converter can reverse the calculation.
What are common names for Knot and Kilometers per Hour?
Knot is shown as knot and may also be searched as knots, kn. Kilometers per Hour is shown as kph and may also be searched as km/h, kmh, kilometers/hour.
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