Calculator inputs
Enter a value in kilometres and get the result in miles instantly.
Enter the measurement using the unit shown in the label and keep units consistent.
Controls rounding in the displayed result only; it does not change the underlying calculation.
Formula
Example: 10 km = 6.214 miles
Worked examples
5 km = 3.107 miles
10 km = 6.214 miles
42.195 km = 26.219 miles
When to use this km to miles converter
Kilometres are standard in many countries, while miles are still widely used for road distances, running targets, and travel planning in others. This converter helps you compare distances without mental maths.
- Convert road trip and route distances when maps, signs, or apps use different unit systems.
- Translate race and workout distances between kilometres and miles for training plans.
- Use the quick reference table for common driving and running distances before using the full calculator.
Kilometres to miles quick reference
| Kilometres | Miles |
|---|---|
| 1 km | 0.62 mi |
| 5 km | 3.11 mi |
| 10 km | 6.21 mi |
| 42.2 km | 26.22 mi |
KM to miles FAQ
How many miles are in one kilometre?
One kilometre equals about 0.621371 miles. Multiply kilometres by 0.621371 to estimate the distance in miles.
Is this useful for running and walking plans?
Yes. It is helpful for converting 5K, 10K, half marathon, and marathon distances into miles.
Can I use it for road travel?
Yes. It works well for trip planning, map comparisons, and understanding overseas distance signage.
Accuracy and use of results
CalculatorWorks aims to make calculations clear and practical. We use standard calculation methods where possible, explain assumptions in plain language, and encourage users to verify important results before relying on them.