Miles to Km Converter
Convert miles to kilometres instantly. Free miles to km converter with common distance values including marathon distances.
Formula
km = miles × 1.60934
Common Conversions
How to Convert Miles to Kilometres
1 mile = 1.60934 km. Multiply miles by 1.60934 (or 1.6 for quick mental math) to get kilometres. So 60 miles × 1.6 = 96 km (exact value 96.56 km - within 0.5%). The international mile has been defined as exactly 1609.344 metres since 1959.
Most common context: driving directions and speed limits when crossing borders. A 70 mph US/UK speed limit is 113 km/h. A 60 mile commute is 97 km. Marathon distance: 26.2 miles = 42.2 km. Useful for travel planning when route distances are quoted in the other country's unit.
Common Miles to Kilometres Conversions
| Miles | Kilometres |
|---|---|
| 1 mile | 1.61 km |
| 5 miles | 8.05 km |
| 10 miles | 16.09 km |
| 26.2 miles (marathon) | 42.20 km |
| 50 miles | 80.47 km |
| 60 miles | 96.56 km |
| 100 miles | 160.93 km |
| 500 miles | 804.67 km |
Frequently Asked Questions
Quick mental conversion?
Multiply miles by 1.6 (or add half + tenth: 60 + 30 + 6 = 96). For higher precision, multiply by 8 then divide by 5 (60 × 8 = 480, ÷5 = 96). Both within 0.5% of exact value.
How long is a marathon in km?
26.2 miles = 42.2 km exactly (by historical convention). The official marathon distance was set at 26 miles 385 yards in 1908 (London) and adopted globally in 1921. In km, it rounds to 42.195 km, often shown as 42.2.
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