KM to Miles Converter
Convert kilometers to miles instantly. Great for travel distances, running routes, and road trips.
Formula: km × 0.621371 = miles
Common Conversions
Why Use Our KM to Miles Converter?
Instant Results
Type any kilometers value and see the miles result immediately as you type.
Highly Accurate
Uses the exact conversion factor. km × 0.621371 = miles
Swap Direction
Easily convert Miles back to Kilometers with the swap button. No need to visit a different page.
One-Click Copy
Copy the converted result to your clipboard instantly with the Copy button.
Common Values Table
See a quick reference table of 9 common kilometers values and their miles equivalents.
100% Private
All conversions happen in your browser. Nothing is sent to a server or stored anywhere.
Frequently Asked Questions
How many miles in a kilometer?
1 km = see the formula above mi. Use the formula: km × 0.621371 = miles.
How to convert kilometers to miles?
To convert kilometers to miles, use the formula: km × 0.621371 = miles. For example, 10 km = 6.214 mi.
Is this km to miles converter accurate?
Yes. The converter uses the internationally accepted exact conversion factor. The result is accurate to at least 6 significant figures.
Can I convert miles back to kilometers?
Yes. Click the "Swap direction" button to reverse the conversion. The current result becomes the new input automatically.
Does this work on mobile?
Yes. The converter works on all devices — phones, tablets, and desktops. All calculations happen in your browser.
Is my data stored anywhere?
No. All conversions run entirely in your browser. Nothing is uploaded, logged, or stored.