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Home » Math & Conversions » Unit Conversions » Kilometers to Miles (km to miles) Converter Kilometers to Miles (km to miles) Converter A bidirectional converter for distance (km ↔ mi) and speed (kph ↔ mph). Enter a value in any field to convert instantly. Distance Conversion (km ↔ mi) Kilometers (km) Miles (mi) Speed Conversion (kph ↔ mph) For converting speeds, such as road signs or cycling data. Kilometers per Hour (kph) Miles per Hour (mph) How to Convert Kilometers to Miles Whether you're converting distance (km) or speed (kph), the conversion factor is the same. There are two main ways to do it: the exact formula for precision, and a simple mental math trick for quick estimates. The Exact Formula The internationally accepted conversion factor is: 1 Kilometer = 0.6213711922 Miles To convert from kilometers to miles, you simply multiply the kilometer value by 0.621371. Example: Convert 100 km to miles. 100 km × 0.621371 = 62.1371 miles The Easy Mental Math Trick (The "8 and 5" Rule) For a fast, on-the-go estimate (like seeing a road sign in Europe), this trick is extremely accurate. It's popular with cyclists and drivers. Miles ≈ (Kilometers
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8) × 5 Example: Convert 80 kph to mph in your head. Divide by 8: 80
8) × 5 Example: Convert 80 kph to mph in your head. Divide by 8: 80
Calculators in 8) × 5 Example: Convert 80 kph to mph in your head. Divide by 8: 80.
Km To Miles Calculator
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