Convert kilometers per hour to knots

Enter the number of kilometers per hour you want to convert to knots in the text box below. The conversion to speed in knots will update as you type.

Answer: 0.54
kilometers per hour (km/h)
1 kilometers per hour = 0.54 knots

Precise decimal and fraction answers

The conversion in knots rounded to six significant decimal places is 1 km/h = 0.539957 kn. The precise fraction answer is 250/463 kn.

Decimal Precision

Conversion from one to ten decimal places

  • 1 km/h = 0.5 kn
  • 1 km/h = 0.54 kn
  • 1 km/h = 0.540 kn
  • 1 km/h = 0.5400 kn
  • 1 km/h = 0.53996 kn
  • 1 km/h = 0.539957 kn
  • 1 km/h = 0.5399568 kn
  • 1 km/h = 0.53995680 kn
  • 1 km/h = 0.539956803 kn
  • 1 km/h = 0.5399568035 kn

How many knots is a kilometer per hour?

A kilometer per hour is slower than a knot. 0.54 knots is the same velocity as one kilometer per hour. A kilometer per hour is 54.00% the velocity a knot. An object moving at a knot is 85.2% faster than an object traveling at one kilometer per hour.

Kilometers per hour to knots conversion factor and formulas


The conversion factor between kilometers per hour and knots is 1.852. This represents the ratio of kilometers per hour per one knot. To calculate the value in knots, we can either divide by the conversion factor or multiply by its inverse.


To convert from kilometers per hour to knots, divide kilometers per hour by 1.852.
The formula is expressed as:
km/h ÷ 1.852 = kn


Alternatively we can multiply by the inverse conversion factor to get the same result.
The inverse of 1.852 is 1/1.852 or 0.54. To convert from kilometers per hour to knots, multiply kilometers per hour by 0.54.
The formula is expressed as:
km/h × 0.54 = kn

About this conversion

Converting kilometers per hour to knots is a conversion between units from separate unit systems - kilometers per hour are metric (SI) defined units while knots are US Customary / UK Imperial .

About Kilometers per hour

SI Unit

Within the SI (metric) system of measurement, a kilometer per hour (km/h) is the distance traveled in one hour as measured in kilometers (1,000 meters). It is commonly used as measurement of velocity over geographic distances. Kilometers per hour are commonly used to measure vehicle speed and speed limits. The official SI symbol is km/h, however kph and km/hr are also used.

About Knots

Customary/Imperial Unit

Knots are a measure of speed over long geographic distances most often associated with the maritime and aviation communities. A knot is a measurement of distance traveled in nautical miles in one hour. The origins of the knot derive from practice of mariners throwing a wooden chip log attached to a line off the stern of a ship. As the ship traveled forward, the line spooled out and the number of physical knots on the line where counted over a 30 second period to determine boat speed. The symbol for knots is either kn or kt.

Reverse this conversion

Convert from knots to kilometers per hour instead.

1 kilometers per hour to other speed units


  • 1 km/h = 1 km/h


  • 1 km/h = 0.621 mph
  • 1 km/h = 0.54 kn

References and Citations

  1. International Bureau of Weights and Measures (BIPM) The International System of Units (SI)
  2. National Institute of Standards and Technology (NIST) General Tables of Units of Measurement

Kilometers per hour to knots conversion table

km/h kn
1 km/h 0.54 kn
2 km/h 1.08 kn
3 km/h 1.62 kn
4 km/h 2.16 kn
5 km/h 2.7 kn
6 km/h 3.24 kn
7 km/h 3.78 kn
8 km/h 4.32 kn
9 km/h 4.86 kn
10 km/h 5.4 kn
km/h kn
20 km/h 10.799 kn
30 km/h 16.199 kn
40 km/h 21.598 kn
50 km/h 26.998 kn
60 km/h 32.397 kn
70 km/h 37.797 kn
80 km/h 43.197 kn
90 km/h 48.596 kn
100 km/h 53.996 kn
1,000 km/h 539.957 kn

More km/h to kn conversions

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