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KM to Miles Converter
Convert kilometres to international miles for driving, running and travel. Compare pace-friendly distances, view common units and convert an entire list at once.
Exact constants · fractions · batch conversion · visual scaleKilometres → Miles
One international mile equals exactly 1.609344 kilometres. Divide kilometres by 1.609344 to obtain miles.
Live length result
Converted measurement
Live conversion ruler
Both rows represent the same physical length. Their labels show why the numeric values change when the unit changes.
—The same length in every unit
Common values
Choose a familiar starting value or enter your own measurement above.
Conversion table
The table updates around useful values for this conversion.
| Starting value (km) | Converted value (mi) |
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Convert several values at once
Enter values separated by commas, semicolons, spaces or new lines. Up to 50 values are processed at once.
| Starting value (km) | Converted value (mi) |
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Exact conversion standard
One international mile equals exactly 1.609344 kilometres. Divide kilometres by 1.609344 to obtain miles.
Where this conversion is useful
Kilometre-to-mile conversion is useful for road distances, running events, cycling routes, travel planning, vehicle ranges and maps used across different measurement systems.
Decimal and fractional inches
Decimal inches are best for calculations, while rulers, woodworking and construction often use fractions. The calculator shows the nearest common fraction without changing the high-precision decimal result.
Precision and rounding
The calculator retains full floating-point precision during calculations. Choose more displayed decimal places for technical work and fewer for everyday measurements. Do not imply more accuracy than the original measurement provides.
Zero is a valid length and converts to zero in every unit.
Batch conversion for lists and specifications
Paste a short list of dimensions to create a clean two-column result table. This is useful for product specifications, plans, training logs and travel notes.
Quick length conversions
Continue with the reverse direction, another common unit pair or the full Length Converter.
KM to Miles Converter – Frequently asked questions
How do I convert kilometres to miles?
Divide kilometres by 1.609344. Five kilometres is approximately 3.10686 miles.
How many miles are in one kilometre?
One kilometre equals approximately 0.6213711922 international miles.
How many miles is a 5K?
A 5-kilometre event is approximately 3.10686 miles.
How many miles is a marathon?
The official marathon distance of 42.195 kilometres is approximately 26.2188 miles.
Can I convert a route with several distances?
Yes. Enter up to 50 kilometre values in the batch converter.
Is a nautical mile the same as a road mile?
No. An international road mile is 1,609.344 metres, while a nautical mile is exactly 1,852 metres.
Why is the mile result not a whole number?
Kilometres and miles do not differ by a whole-number factor, so decimal results are normal.
Where can I convert miles back to kilometres?
Use the reverse-direction button to open the Miles to KM Converter.