20 km to Miles
20 km ≈ 12.43 mi
20 kilometers is approximately 12.43 miles.
How to convert 20 km to mi
Use the formula mi = km ÷ 1.609344:
mi = 20 ÷ 1.609344mi = 12.427424
So 20 km = 12.427424 mi, or about 12.43 mi rounded.
Rounded values and quick estimate
- Rounded to a whole number: 12 mi
- Rounded to one decimal place: 12.4 mi
- Conversion factor: 1 kilometer = 0.6214 miles
Quick mental estimate: multiply by 0.6. For 20 km that gives about 12 mi — off by 0.4274 mi (3.4%). Use the exact formula when precision matters.
20 km in other units
- Miles
- 12.43 mi
- Millimeters
- 20000000 mm
- Centimeters
- 2000000 cm
- Meters
- 20000 m
- Inches
- 787401.57 in
- Feet
- 65616.8 ft
- Yards
- 21872.27 yd
- Micrometers
- 20000000000 µm
- Hands
- 196850.39 hh
- Nautical miles
- 10.8 nmi
- Mils (thou)
- 787401574.8 mil
20 km and nearby values
About kilometers and miles
A kilometer is 1,000 meters. It is used for road distances and running races in most of the world.
A mile is 5,280 feet, or exactly 1,609.344 meters. It is the road-distance unit in the US and UK.
Related conversions
Frequently asked questions
What is 20 km in Miles?
20 kilometers is about 12.43 miles (20 km ≈ 12.43 mi).
How do you convert 20 km to mi?
Apply mi = km ÷ 1.609344: mi = 20 ÷ 1.609344, mi = 12.427424.
How many kilometers is 12.43 mi?
12.43 mi is about 20 kilometers.