Convert Kilometer/hour to Mile/hour - Free Calculator
Fast, accurate speed conversion calculator. Convert kilometer/hour to mile/hour instantly with precise results.
Common Conversions
Related Speed Conversions
Popular Speed Conversions
- Knot to Meter/second
- Meter/second to Knot
- Mile/hour to Knot
- Speed of Light [Vacuum] to Kilometer/second
- Speed of Light [Air] to Mach
- Mach to Speed of Light [Ice]
- Kilometer/second to Speed of Light [Vacuum]
- Mach to Speed of Sound [Metal]
- Kilometer/second to Speed of Light [Glass]
- Mach to Speed of Sound [Water]
How to Convert Kilometer/hour to Mile/hour
Use this free online calculator to convert Kilometer/hour to Mile/hour instantly. This speed conversion tool provides accurate results for all your measurement needs.
Quick Reference
Kilometer/hour to Mile/hour Conversion Formula
To convert Kilometer/hour to Mile/hour, multiply by 0.621371.
To convert Mile/hour back to Kilometer/hour, divide by 0.621371 (or multiply by 1.60934).
About These Units
About Kilometer/hour
The kilometre per hour (American English: kilometer per hour) is a unit of both speed (scalar) and velocity (vector). The unit symbol is km/h or km·h−1; however, the colloquial abbreviations "kph" and "kmph" are sometimes also used in English-speaking countries, in analogy to mph, although these are not in accordance with international scientific standards. In North American slang and military usage, km/h (as well as km) is commonly pronounced, and sometimes even written, as klicks or kays (K's), although these may also be used to refer to kilometres.rnrnThe km/h is the worldwide most commonly used speed unit on road signs and car speedometers. Therefore, it is far more common in everyday usage than the proper SI unit of speed, m/s. Along with the kW·h, km/h is the most commonly used metric unit based on the hour, which is only a "non-SI unit accepted for use with the International System of Units" by the BIPM
About Mile/hour
The mile per hour is a unit of speed, expressing the number of international miles covered per hour.rnrnIt is currently the unit used for speed limits, and speeds, on roads in the United Kingdom, United States and other nations. It is also used to express the speed of delivery of a ball in various sporting events, such as cricket, tennis, and baseball at the higher levels of competition. A common abbreviation is mph or MPH, although mi/h is sometimes used in technical publications.rnrnIn the International System of Units (SI), the unit of speed or velocity is m/s. Road traffic speeds, in most countries, are quoted in km/h. Nautical and aeronautical applications, however, favor the knot as a common unit of speed: one knot is one nautical mile per hour.
Kilometer/hour to Mile/hour Conversion Table
| Kilometer/hour | Mile/hour | Mile/hour | Kilometer/hour |
|---|---|---|---|
| 0.1 | 0.0621371 | 0.1 | 0.160934 |
| 0.5 | 0.310686 | 0.5 | 0.804672 |
| 1 | 0.621371 | 1 | 1.60934 |
| 2 | 1.24274 | 2 | 3.21869 |
| 5 | 3.10686 | 5 | 8.04672 |
| 10 | 6.21371 | 10 | 16.0934 |
| 20 | 12.4274 | 20 | 32.1869 |
| 25 | 15.5343 | 25 | 40.2336 |
| 50 | 31.0686 | 50 | 80.4672 |
| 100 | 62.1371 | 100 | 160.934 |
| 250 | 155.343 | 250 | 402.336 |
| 500 | 310.686 | 500 | 804.672 |
| 1000 | 621.371 | 1000 | 1,609.34 |
Why Use Our Kilometer/hour to Mile/hour Converter?
- Instant and accurate speed conversions
- Free to use with no registration required
- Mobile-friendly design for conversions on the go
- Supports all major speed units