Convert square kilometers to square miles
Square kilometers to square miles. Enter a value to convert, or use the square kilometers to square miles chart further down the page.
1 square kilometer equals 0.3861021585 square miles. Going the other way, 1 square mile = 2.58998811 square kilometers.
How to convert square kilometers to square miles
To convert square kilometers to square miles, multiply the square kilometer value by 0.3861021585. You can also divide by 2.58998811 to get the same answer.
mi² = km² × 0.3861021585
Worked example
Convert 15 km² to square miles:
15 km² = 5.791532378 mi²
square kilometers to square miles conversion chart
Use this square kilometers to square miles table for quick reference without typing anything.
| square kilometers (km²) | square miles (mi²) |
|---|---|
| 0.01 km² | 0.003861021585 mi² |
| 0.1 km² | 0.03861021585 mi² |
| 1 km² | 0.3861021585 mi² |
| 2 km² | 0.7722043171 mi² |
| 3 km² | 1.158306476 mi² |
| 5 km² | 1.930510793 mi² |
| 10 km² | 3.861021585 mi² |
| 20 km² | 7.722043171 mi² |
| 50 km² | 19.30510793 mi² |
| 100 km² | 38.61021585 mi² |
| 1,000 km² | 386.1021585 mi² |
What is a square kilometer?
A square kilometer is one million square meters, or 100 hectares. It is the standard unit for the area of towns, lakes and countries.
What is a square mile?
A square mile is exactly 640 acres, or about 2.59 square kilometers. It is the unit used for US county and city areas.
Frequently asked questions
How many square miles are in a square kilometer?
1 square kilometers equals 0.3861021585 square miles. Going the other way, 1 square miles is 2.58998811 square kilometers.
How do you convert square kilometers to square miles?
To convert square kilometers to square miles, multiply the square kilometer value by 0.3861021585. You can also divide by 2.58998811 to get the same answer.
What is 10 square kilometers in square miles?
10 square kilometers equals 3.861021585 square miles. The conversion chart on this page lists the other values people look up most often.
Related area conversions
Convert square kilometers to other units
- square miles to square kilometers
- square kilometers to square meters
- square kilometers to square feet
- square kilometers to acres
- square kilometers to hectares
- square kilometers to square yards
- square kilometers to square inches
- square kilometers to square centimeters
Convert other units to square miles
- square meters to square miles
- square feet to square miles
- acres to square miles
- hectares to square miles
- square yards to square miles
- square inches to square miles
- square centimeters to square miles
Popular conversions
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