KM to Miles Converter
Convert kilometers to miles (km to mi) instantly, with the formula and a conversion chart.
Everything is converted entirely in your browser. Nothing is sent to a server.
This tool is temporarily unavailable.
Please check back later.
How to convert kilometers to miles
1 kilometer = 0.621371 miles. To convert kilometers to miles, multiply by 0.621371.
Example: 10 km = 6.214 mi.
Quick estimate: Multiply by 0.6 for a quick estimate, or use Fibonacci numbers: 8 km ≈ 5 miles, 13 km ≈ 8 miles.
Running race distances (5K, 10K, half and full marathon), road signs abroad and car odometers are the usual reasons to convert.
KM to Miles conversion chart
| Kilometers | Miles |
|---|---|
| 1 km | 0.6214 mi |
| 3 km | 1.864 mi |
| 5 km | 3.107 mi |
| 10 km | 6.214 mi |
| 15 km | 9.321 mi |
| 21.098 km | 13.109 mi |
| 25 km | 15.534 mi |
| 42.195 km | 26.219 mi |
| 50 km | 31.069 mi |
| 100 km | 62.137 mi |
| 200 km | 124.27 mi |
| 500 km | 310.69 mi |
How to use this tool
- 1Type the number of kilometers in the Value box.
- 2The result in miles appears instantly.
- 3Use the ⇄ button to convert miles to kilometers instead, or pick any other unit.
Features
- Exact km to mi conversion using the standard definition.
- Results update as you type, rounded to 6 decimal places.
- Switch to any other length, weight, temperature, volume or speed unit.
Privacy
Everything is calculated in your browser. Nothing is sent to a server.
Frequently asked questions
How many miles is a 5K?
A 5K is 3.107 miles, usually called 3.1 miles.
How many miles is a marathon?
A marathon is 42.195 km, which is 26.2 miles. A half marathon is 13.1 miles.
How do I convert miles back to kilometers?
Divide by 0.621371 (or multiply by 1.60934), or use the swap button in the converter above or the Miles to KM converter.
Popular conversions
- CM to Inches
- Inches to CM
- Feet to Meters
- Meters to Feet
- Miles to KM
- MM to Inches
- Inches to MM
- Feet to CM
- CM to Feet
- Yards to Meters
- Meters to Yards
- KG to LBS
- LBS to KG
- Grams to Ounces
- Ounces to Grams
- Celsius to Fahrenheit
- Fahrenheit to Celsius
- Celsius to Kelvin
- Kelvin to Celsius
- Liters to Gallons
- Gallons to Liters
- ML to OZ
- OZ to ML
- Cups to ML
- ML to Cups
- KM/H to MPH
- MPH to KM/H
Guides
- Holiday Baking Conversions: Cups to ML, °F to °C and More
Baking a recipe from another country this holiday season? Convert cups, sticks of butter, ounces and oven temperatures correctly — with a handy chart.
- How to Convert Kilograms to Pounds (and Pounds to Kilograms)
1 kg = 2.20462 lb. Learn the exact kg-to-lbs formula, a quick mental trick, and a chart for body weight, luggage limits and gym plates.
- How to Convert Celsius to Fahrenheit (and Back)
The exact formula for converting °C to °F and °F to °C, a quick mental shortcut, and a handy chart of everyday temperatures for weather, cooking and fever.
- Everyday Unit Conversions Made Simple
From cooking in a different measurement system to converting kilometers to miles, here's a quick guide to the unit conversions people actually need.