Mile per Hour to Knot (UK) Conversion
Convert between Mile per Hour and Knot (UK) quickly and accurately.
How to Convert Mile per Hour to Knot (UK)
Conversion Formula
Example
Convert 15 mph to kt (UK):
Unit Information
Learn about the speed units you're converting between
Mile per Hour
mph
Definition
The mile per hour is a unit of speed expressing the number of statute miles traveled in one hour. It is primarily used in the United States, United Kingdom, and other countries that have not fully adopted the metric system for everyday measurements.
History/Origin
Mile per hour has its origins in the British Imperial system and was widely used in the British Empire. It became the standard speed unit in the United States and remains the primary unit for road traffic, aviation, and weather reporting in these countries.
Current Use
Mile per hour is used for speed limits, speedometers, weather reports, and aviation in the US, UK, and other imperial system countries. It is also commonly used in sports, particularly in motorsports and athletics in these regions.
Multiplier
0.447
Offset
0
Knot (UK)
kt (UK)
Definition
The UK knot is a variant of the standard knot used in the United Kingdom, representing one UK nautical mile per hour. It differs slightly from the international knot due to the different definition of the nautical mile used in the UK.
History/Origin
The UK knot was developed when the United Kingdom used a slightly different definition of the nautical mile. This created a small difference in the knot measurement, which was standardized for UK maritime and aviation applications.
Current Use
The UK knot is used in the United Kingdom for maritime navigation, aviation, and meteorological applications. It is gradually being replaced by the international knot as the UK adopts international standards, but it is still used in some legacy applications.
Multiplier
0.515
Offset
0
Mile per Hour to Knot (UK) Conversion Table
| Mile per Hour [mph] | Knot (UK) [kt (UK)] |
|---|---|
| 1 mph | 0.868421 kt (UK) |
| 10 mph | 8.684211 kt (UK) |
| 25 mph | 21.710526 kt (UK) |
| 50 mph | 43.421053 kt (UK) |
| 100 mph | 86.842105 kt (UK) |
| 0 mph | 0E+0 kt (UK) |
| -10 mph | -8.684211 kt (UK) |
| -40 mph | -34.736842 kt (UK) |
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