Convert miles to kilometres instantly — type any value and the result appears as you type. Below you will find the exact formula, a mi to km conversion table and a worked example.
Formula: Kilometres = miles × 1.60934. One mile is exactly 1.609344 kilometres.
Question: How many kilometres is 26.2 mi — marathon distance?
Steps: Take the value in miles: 26.2 mi. Apply the formula: Kilometres = miles × 1. That gives 26.2 → 42.1647 km (rounded to four decimal places).
Result: 26.2 mi = 42.1647 km.
| Miles (mi) | Kilometres (km) |
| 1 mi | 1.6093 km |
| 2 mi | 3.2187 km |
| 5 mi | 8.0467 km |
| 10 mi | 16.0934 km |
| 26.2 mi | 42.1647 km |
| 50 mi | 80.467 km |
| 100 mi | 160.934 km |
| 200 mi | 321.868 km |
| 500 mi | 804.67 km |
| 1000 mi | 1609.34 km |
Need a value that is not in the table — or the reverse direction? Use the converter at the top of this page or the km to miles converter, or the full Unit Converter for every unit in one place.
Multiply the value in miles by 1.6093: mi × 1.6093 = km. For example, 10 mi × 1.6093 = 16.0934 km. The converter above does this instantly.
Exactly 1.6093 km (to four decimal places). The full relationship: Kilometres = miles × 1.
100 miles = 160.934 kilometres.
Use the reverse conversion — our km to miles converter does it instantly. For a quick check, divide by the same factor instead of multiplying.
Road distances and speed limits use miles in the United States and the United Kingdom; almost every other country uses kilometres.
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