100 km in miles
100 km = 62.137 miles = 100000 m
Working: 100 ÷ 1.609344 = 62.1371
100 kilometres is 62.14 miles.
One mile is exactly 1.609344 kilometres, so to convert kilometres to miles you divide by that figure — or multiply by 0.621371, which is the same operation. For 100 km: 100 × 0.621371 = 62.137 miles. As a mental shortcut, a kilometre is roughly five-eighths of a mile, and 8 km is almost exactly 5 miles.
One hundred kilometres is 62.14 miles and a standard ultramarathon and cycling distance. It is also the reference distance for European fuel economy, which is quoted as litres per 100 km — the inverse of the American miles-per-gallon, which is why the two figures move in opposite directions.
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Frequently asked questions
How many miles is 100 km?
100 km is 62.14 miles. Multiply the kilometre value by 0.621371 to convert to miles.
How many kilometres are in a mile?
One mile is exactly 1.609344 kilometres. Conversely, one kilometre is about 0.621371 miles.
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For any other value, use the full Length Converter on BrainVert.