Convert miles to kilometers instantly. Free online mi to km converter with accurate results and formula explanation.
Formula
km = mi × 1.60934The mile (mi) is an imperial unit of length primarily used in the United States and the United Kingdom, while the kilometer (km) is a metric unit used worldwide. Converting miles to kilometers is essential for international travel, understanding speed limits abroad, and reading maps from different countries.
km = mi × 1.60934To convert miles to kilometers, multiply by 1.60934. The international definition states that 1 mile is exactly 1.609344 kilometers, making this a precise conversion.
| Input | Output |
|---|---|
| 1 mi | 1.60934 km |
| 5 mi | 8.0467 km |
| 10 mi | 16.0934 km |
| 26.2 mi | 42.165 km (marathon) |
| 100 mi | 160.934 km |