Convert square miles to square kilometers
Accurate tool to convert between mi² and km²
Area
Square miles
The square mile is an imperial unit of area.
Square kilometers
The square kilometer is a metric unit of area equal to one million square meters.
Formula
To convert from mi2 to square kilometers, multiply the area by 2.58999.
mi2 (mi2)
Description
The square mile is an imperial unit of area.
History
Based on the mile.
Symbol Origin
Square of 'mile'.
Usage Context
Used for large geographical areas in the US and UK.
Main Usage
Did you know?
One square mile is equal to 640 acres.
square kilometers (km2)
Description
The square kilometer is a metric unit of area equal to one million square meters.
History
Derived from the kilometer. Used for large scale geographical measurements.
Symbol Origin
Square of 'kilometer'.
Usage Context
Used for measuring countries, cities, and lakes.
Main Usage
Did you know?
Vatican City, the smallest country in the world, is only 0.44 km².
Quick Conversion Table
| mi2 (mi2) | square kilometers (km2) |
|---|---|
| 1 | 2.58999 |
| 2 | 5.17998 |
| 5 | 12.9499 |
| 10 | 25.8999 |
| 25 | 64.7497 |
| 50 | 129.499 |
| 100 | 258.999 |
| 500 | 1294.99 |
| 1000 | 2589.99 |
| 2500 | 6474.97 |
| 5000 | 12949.9 |
| 10000 | 25899.9 |
Frequently Asked Questions
How to convert mi2 to square kilometers?
To convert from mi2 to square kilometers, multiply the area by 2.58999.
How many square kilometers in 1 mi2?
1 mi2 is equal to 2.58999 square kilometers.
What is a mi2?
The square mile is an imperial unit of area.
What is a square kilometers?
The square kilometer is a metric unit of area equal to one million square meters.