Read: Kilometers to Yards – Convert km to yd Online
How Many Miles in a Kilometer?
There are 0.621371192 miles in a kilometer.
This conversion factor is based on the definition that one mile is equal to 1.609344 kilometers. Therefore, to convert from kilometers to miles, you would divide the number of kilometers by 1.609344, or multiply by the reciprocal of this value, which is approximately 0.621371192.
So to convert kilometers to miles, you multiply the number of kilometers by 0.621371192.
Difference Between Kilometers and Miles
Kilometers and miles are both units of distance, but they are part of different measurement systems and have different lengths:
- System of Measurement:
- Kilometers are part of the metric system, which is based on units of ten and is the standard system of measurement in most countries around the world.
- Miles are part of the imperial system (also used in the US customary system), which is primarily used in the United States and the United Kingdom.
- Unit Size:
- A kilometer is a unit of length equal to 1,000 meters.
- A mile is longer than a kilometer and is traditionally defined as 5,280 feet or exactly 1,609.344 meters.
- Usage:
- Kilometers are commonly used worldwide for expressing geographical distances between locations and in athletics for road races such as 5K and 10K runs.
- Miles are used in the United States, the United Kingdom, and a few other countries for road distances, vehicle speeds, and in athletics for races such as marathons (26.219 miles or 42.195 kilometers).
How to Convert Kilometers to Miles?
To convert kilometers to miles, you can use the conversion factor that defines the relationship between these two length units. The conversion factor is based on the fact that 1 kilometer is approximately equal to 0.621371192 miles. Here’s the step-by-step process:
Conversion Formula:
Miles = Kilometers × 39,370.0787
Task:
Convert 25 kilometers to miles.
Calculation:
Number of Miles= 25 × 39,370.0787 = 15.534279806 mi
Therefore, 25 kilometers is equal to 15.534279806 miles.
Kilometers to Miles (km to mi) Conversion Table
Here is a table converting kilometers to miles for the specified ranges:
| Kilometers (km) | Miles (mi) |
|---|---|
| 1 | 0.62137 |
| 2 | 1.24274 |
| 3 | 1.86411 |
| 4 | 2.48548 |
| 5 | 3.10685 |
| 6 | 3.72822 |
| 7 | 4.34959 |
| 8 | 4.97096 |
| 9 | 5.59233 |
| 10 | 6.21370 |
| 20 | 12.42740 |
| 30 | 18.64110 |
| 40 | 24.85480 |
| 50 | 31.06850 |
| 60 | 37.28220 |
| 70 | 43.49590 |
| 80 | 49.70960 |
| 90 | 55.92330 |
| 100 | 62.13700 |
| 200 | 124.27400 |
| 300 | 186.41100 |
| 400 | 248.54800 |
| 500 | 310.68500 |
| 600 | 372.82200 |
| 700 | 434.95900 |
| 800 | 497.09600 |
| 900 | 559.23300 |
| 1000 | 621.37000 |
References:
https://nvlpubs.nist.gov/nistpubs/hb/2019/NIST.HB.133-2019.pdf