ExactConverter

kilometres to miles

1 km is 0.621 mi. Exact factor: mi = km ÷ 1.609344.

Consecutive Fibonacci numbers approximate this ratio: 5 km is about 3 miles, 8 km about 5, 13 km about 8.

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Edit either field — the other updates instantly. Type decimal values like 38.4.

Common values

Questions

How do you convert kilometres to miles?
Apply the formula mi = km ÷ 1.609344. The converter above does it as you type, and every value below has its own page with the worked answer.
What is 1 km in mi?
1 km is 0.621 mi.
Is this exact?
Consecutive Fibonacci numbers approximate this ratio: 5 km is about 3 miles, 8 km about 5, 13 km about 8.

Every km to mi page — 172 values