Kilometers to Miles
Convert kilometres to miles so you can compare distances in the other unit, whether for training, travel or planning. Runs in your browser, GDPR-compliant.
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How to use this tool (video)
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Kilometers to Miles
The kilometers-to-miles converter turns kilometres into miles so you can compare distances in the other unit. Whether for training, travel, or planning: this tool lets you convert any distance quickly. The computation happens directly in your browser.
How it works
The conversion is based on the exact conversion factor: 1 mile equals 1.609344 kilometres. The formula is: mi = km / 1.609344. As a concrete example, 10 kilometres is converted to miles by calculating 10 / 1.609344 = 6.21 miles. Another example: 1 kilometre equals approximately 0.621 miles, and 100 kilometres equals about 62.1 miles. The factor is defined universally and applies to all distance conversions.
What the tool can and cannot do
This tool performs a simple conversion from kilometres to miles. It cannot plan routes, calculate travel times, or process real-time GPS data. It converts only individual values and offers no directions or navigation assistance. The calculator accepts only numeric inputs and is not a substitute for a navigation device or mapping application.
Why local processing in the browser
All calculations happen locally in your browser. Your inputs are never sent to a server, there is no upload and no server log files storing your data. You need no account and do not need to register. After the page loads, the calculator works offline too, because the assets are cached in the browser. There is no attackable server and nothing is transmitted over the network. You can freely calculate, discard results, and re-enter values as often as you like, because nothing is stored or tracked.
Frequently asked questions
What is the exact conversion factor?
1 mile equals exactly 1.609344 kilometres. This factor is internationally defined and applies universally.
Do I need to be online?
No, the calculator works offline after the page loads. The computation is purely local and requires no Internet connection.
Are my distance data uploaded?
No, all inputs stay on your device. There is no upload, no server logs, and no third-party access to your data.
Can I also convert miles to kilometres?
Yes, the inverse is km = mi × 1.609344. You can convert in both directions.
Is the calculator suitable for navigation?
No, the calculator is a pure conversion tool. It offers no route planning or real-time navigation.
Is the calculator precise?
Yes, the calculator uses the exact conversion factor 1.609344 and delivers precise results for every distance entered.