ConvertOnlineMiles to Kilometers calculator
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Miles to Kilometers formula
Use this formula to convert miles to kilometers:
Calculation
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Miles to Kilometers Conversion Table
Reference values for converting Miles to Kilometers.
| Miles (mi) | Kilometers (km) |
|---|---|
| 0 mi | 0 km |
| 1 mi | 1.6093 km |
| 2 mi | 3.2187 km |
| 5 mi | 8.0467 km |
| 10 mi | 16.0934 km |
| 20 mi | 32.1869 km |
| 50 mi | 80.4672 km |
| 100 mi | 160.9344 km |
Worked example
Convert 300 Miles to Kilometers
Kilometers = 300 × 1.609344 = 482.8032 Kilometers
About these units
Miles
A mile (symbol: mi or m) is a unit of length commonly used in the United States and the United Kingdom. One mile is equal to 1.60934 kilometers.
The mile originated from the Roman mile, which was 1,000 paces. The current definition of a mile is based on the international agreement and equals exactly 1,609.344 meters.
Miles are mainly used to measure distances in the United States and the United Kingdom, especially for road systems. While most of the world uses kilometers, the mile remains prevalent in these countries.
Kilometers
A kilometer (km) is a unit of length in the International System of Units (SI), equal to 0.6214 miles. One kilometer is one thousand meters.
The prefix "kilo-" means one thousand. A kilometer is defined by 1000 times the distance light travels in 1/299,792,458 seconds. This definition may change, but a kilometer will always be one thousand meters.
Kilometers are used to measure distances on land in most countries. However, the United States and the United Kingdom still often use miles. The UK has adopted the metric system, but miles are still used on road signs.
Frequently asked questions
What is the difference between miles and kilometers?
What is the SI unit of length?
Are miles longer than kilometers?
{"formula":"x * 1.609344","precision":16,"x_desc":"Miles","y_desc":"Kilometers"}