Miles to Kilometers Converter

Multiply miles by 1.60934. For example, 100 miles × 1.609 = 160.9 km. Quick estimate: add 60% to the miles — 100 + 60 = 160 km.

1 mile = 1.60934 kilometers. Conversely, 1 km = 0.621371 miles. A handy approximation: 5 miles ≈ 8 km (using Fibonacci numbers for conversion).

The US inherited the English measurement system and never fully converted to metric. The US Metric Conversion Act of 1975 was voluntary, so conversion stalled. Road signs, speed limits, and everyday distance references remain in miles.