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Velocity

km/htokn

Convert kilometres per hour (km/h) to knots (kn).

Factor1 km/h = 0.5399568 kn

Converter

km/h

Accepts numbers or expressions, e.g. 150 + 14.7

Result
53.9957kn

Rendered to 6 significant figures.

Formula

Formula
kn = km/h × 0.5399568

Multiply any value in kilometres per hour by 0.5399568 to obtain the value in knots.

Worked example

Convert 100 km/h to kn.

  1. 01Start with 100 km/h.
  2. 02Multiply by the conversion factor: 100 × 0.5399568 = 53.9957 kn.
Result100 km/h = 53.9957 kn

Conversion table

km/hkn
10.53996
21.0799
52.6998
105.3996
2010.799
5026.998
10053.996
200107.99
500269.98
1000539.96

Reference values rounded to 5 significant figures for display.

FAQ

What is the conversion factor from km/h to kn?
1 km/h equals 0.5399568 kn. To convert, multiply the value in kilometres per hour by 0.5399568.
How do I convert 1 km/h to kn?
1 km/h = 0.539957 kn. For any value, multiply by 0.5399568.
How do I convert kn back to km/h?
Divide by the same factor — or equivalently, multiply by 1.852. So 1 kn = 1.852 km/h.
When would I need to convert kilometre per hour to knot?
Velocity conversions are needed for fluid flow analysis (line velocity targets, erosional limits), gas-stream calculations, and equipment specs that mix m/s, ft/s and engineering speed units.
Is the conversion exact?
Yes. Both km/h and kn are defined by exact SI relationships, so the displayed factor is exact (any rounding shown is only for display).

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