Square Kilometers (km²) to Square Miles (mi²) Converter
Square Kilometers (km²) to Square Miles (mi²) conversion table
Here are the most common conversions for Square Kilometers (km²) to Square Miles (mi²) at a glance.
| Square Kilometers (km²) | Square Miles (mi²) |
|---|---|
| 0.001 | 0.00038610 |
| 0.01 | 0.00386100 |
| 0.1 | 0.03861004 |
| 1 | 0.38610039 |
| 2 | 0.77220077 |
| 3 | 1.15830116 |
| 5 | 1.93050193 |
| 10 | 3.86100386 |
| 20 | 7.72200772 |
| 30 | 11.58301158 |
| 50 | 19.30501931 |
| 100 | 38.61003861 |
| 1000 | 386.10038610 |
Square kilometers to Square miles (km² to mi²) Converter
Use our free Square kilometers to Square miles converter to change any value from km² to mi² instantly and accurately. 1 square kilometer equals 0.3861021585 square miles, and 1 square mile equals 2.58998811 square kilometers. Enter a number, choose the precision and get the result in one click.
Square kilometer to Square mile formula
To convert square kilometers to square miles, divide the number of square kilometers by 2.58998811:
mi² = km² × 0.3861021585
Example: 25 km² × 0.3861021585 = 9.652553964 mi².
Square kilometers to Square miles conversion table
| Square kilometers (km²) | Square miles (mi²) |
|---|---|
| 1 km² | 0.3861021585 mi² |
| 5 km² | 1.930510793 mi² |
| 10 km² | 3.861021585 mi² |
| 25 km² | 9.652553964 mi² |
| 50 km² | 19.30510793 mi² |
| 100 km² | 38.61021585 mi² |
| 1,000 km² | 386.1021585 mi² |
Square kilometer and Square mile explained
Square kilometer (km²): A square kilometer equals one million square meters. It is used for cities, countries and large land areas.
Square mile (mi²): A square mile is about 2.59 square kilometers and is used for cities, counties and land in the US.
How to use the Square kilometer to Square mile converter
- Enter the value in square kilometers (km²).
- Choose the number of decimal places (precision).
- Click Submit to convert.
- Read or copy the result in square miles (mi²).
Common use cases
- Converting area measurements for work, school or travel
- Checking area values in product specifications
- Quickly comparing metric and imperial or binary and decimal values
- Double-checking manual calculations
Frequently asked questions
How many square miles are in 1 square kilometer?
There are 0.3861021585 square miles in one square kilometer.
How do I convert square miles back to square kilometers?
Multiply by 2.58998811, or use our Square mile to Square kilometer converter.
Is this converter accurate?
Yes. It uses the official international conversion factors and lets you choose the number of decimal places.
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