How to Convert km to mi: Complete Guide
Converting from km to mi is a common task in construction, travel planning, sports measurements, and everyday shopping. Whether you need a quick answer or want to understand the math behind the conversion, this guide covers everything you need.
Quick Answer
**1 km = 0.621371 mi**. To convert any value from km to mi, multiply by 0.621371.
The Conversion Formula
The formula is straightforward: **mi = km Γ 0.621371**. For the reverse conversion, divide by 0.621371 instead: **km = mi Γ· 0.621371**.
Common Conversion Table
Here are the most commonly needed conversions: - 0.1 km = 0.0621371 mi - 0.5 km = 0.310686 mi - 1 km = 0.621371 mi - 2 km = 1.24274 mi - 3 km = 1.86411 mi - 5 km = 3.10686 mi - 10 km = 6.21371 mi - 15 km = 9.32057 mi - 20 km = 12.4274 mi - 25 km = 15.5343 mi - 50 km = 31.0686 mi - 100 km = 62.1371 mi - 250 km = 155.343 mi - 500 km = 310.686 mi - 1000 km = 621.371 mi
When You Need This Conversion
This conversion is commonly needed in construction, travel planning, sports measurements, and everyday shopping. Understanding the relationship between km and mi helps you work efficiently across different measurement systems and standards.
Tips for Quick Conversions
Since 1 km equals 0.621371 mi, each km is somewhat smaller than a mi. For quick estimates, divide by 1.60934. For precise results, use our free converter tool.
Use Our Free Converter
Skip the manual math and use our free km to mi converter for instant, accurate results. It includes a conversion table, formula explanation, and related conversions β all optimized for mobile and desktop.