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Miles to Kilometers
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Miles to Kilometers — quick reference

1 mi = 1.6093 km
Common Miles to Kilometers conversions
mi km
1 mi 1.6093 km
2 mi 3.2187 km
3 mi 4.828 km
5 mi 8.0467 km
10 mi 16.0934 km
20 mi 32.1869 km
25 mi 40.2336 km
50 mi 80.4672 km
100 mi 160.9344 km
250 mi 402.336 km
500 mi 804.672 km
1000 mi 1609.344 km
// about this tool

Miles to Kilometers Online

Updated 2026-08-19

Convert miles to kilometers online for free. Enter a distance in miles and SnapTools shows the exact value in kilometres instantly, in your browser — nothing is uploaded.

One mile is exactly 1.609344 kilometres, so you multiply miles by about 1.6094. For quick reference: 1 mi ≈ 1.61 km, 5 mi ≈ 8.05 km, 10 mi ≈ 16.09 km, 26.2 mi (a marathon) ≈ 42.2 km, and 100 mi ≈ 160.93 km. Enter any value above for the precise figure, or use the full Length Converter for metres, feet, yards, and more.

// how to use

  1. 1 Type a distance in miles into the input.
  2. 2 SnapTools shows the value in kilometres instantly as you type.
  3. 3 Copy the result, or open the Length Converter for other units.

// examples

Common distance
Input
5
Output
8.04672
Round number
Input
100
Output
160.9344

// common uses

Converting mile-based road distances to kilometres Reading US or UK signage in metric Comparing running distances across systems Planning a route given in miles on a metric map

// faq

Is my input uploaded to a server?
No. The conversion runs entirely in your browser, so nothing you enter leaves your machine.
How many kilometres are in a mile?
One mile is exactly 1.609344 kilometres, by the international definition of the mile as 1609.344 metres. So you multiply miles by 1.609344 to get km.
How do I convert miles to km in my head?
A close estimate is to multiply by 1.6 (or add 60 percent). 10 miles is about 16 km. This tool gives the exact value.
Is this the international mile?
Yes. It uses the international statute mile of 1609.344 metres, the standard for road distances, not the nautical mile.
How accurate is the result?
It uses the exact international definition, so the answer is precise to many decimal places rather than a rounded estimate.

// works with your data

Kilometers to Miles Feet to Meters Inches to Centimeters Length Converter Number Base Converter

Use this via API

Get a free API key → 
curl -X POST https://thesnaptools.com/api/v1/tools/miles-to-km \
  -H "Authorization: Bearer YOUR_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{"value":"5"}'