Running Distance Converter — km to Miles
Convert running distances between kilometres and miles. Quickly switch 5K, 10K, half marathon, and marathon distances between metric and imperial.
This distance converter lets you switch between kilometres and miles instantly. Enter a value in either field — for example, convert a 10K race distance to miles or a weekly mileage total — and the other unit updates automatically.
Runners often need to convert distances when following training plans written in one system while racing or tracking in another. A marathon is 42.195 km in miles or 26.2 miles in kilometres; a half marathon is 21.1 km in miles or 13.1 miles in kilometres. Common training distances like 5K in miles (3.1 miles) and 10K in miles (6.2 miles) are easy to compare once you know both figures.
The conversion uses the standard factor of 1 mile = 1.60934 kilometres. Results are rounded for readability, so very small differences from published race distances are normal and do not affect training or pacing decisions.
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