Square Kilometers to Square Miles
Convert square kilometers to square miles instantly, with a reference table.
Square Kilometers to Square Miles at a glance
Square Kilometers to Square Miles is a free online converter you can use right now to convert square kilometers to square miles instantly, with a reference table โ no account, no install and no usage limit. It runs entirely inside your browser, so whatever you enter stays on your own device.
- Price
- Free โ no trial, no paid tier, no watermark
- Sign-up
- Not required
- Where it runs
- In your browser โ nothing is uploaded to a server
- Works on
- Chrome, Safari, Firefox and Edge โ desktop, tablet and phone
- Category
- Unit Conversions
Square Kilometers to Square Miles conversion table
| Square Kilometers (kmยฒ) | Square Miles (miยฒ) |
|---|---|
| 1 kmยฒ | 0.386102 miยฒ |
| 2 kmยฒ | 0.772204 miยฒ |
| 3 kmยฒ | 1.158307 miยฒ |
| 5 kmยฒ | 1.930511 miยฒ |
| 10 kmยฒ | 3.861022 miยฒ |
| 25 kmยฒ | 9.652554 miยฒ |
| 50 kmยฒ | 19.305108 miยฒ |
| 100 kmยฒ | 38.610216 miยฒ |
| 500 kmยฒ | 193.05108 miยฒ |
| 1000 kmยฒ | 386.10216 miยฒ |
About Square Kilometers to Square Miles
Convert square kilometers to square miles instantly, with a reference table of common values. The factor is exact: 1 kmยฒ = 0.386102159 miยฒ.
Used for the areas of cities, regions and countries, where reference sources differ on which unit they report.
The square kilometre is the area of a square one kilometre on each side โ one million square metres. It is the standard unit for the areas of cities, regions, countries and protected land. A square kilometre is 100 hectares, and Central Park in New York is about 3.4 kmยฒ.
Worked through with real numbers: 1 kmยฒ is 0.386102 miยฒ, 50 kmยฒ is 19.305 miยฒ, 500 kmยฒ is 193.051 miยฒ.
As for the other side of the conversion: A square mile is 640 acres, or about 2.59 kmยฒ.
Area conversions square the underlying length factor, which is why they feel counterintuitive. A metre is about 3.28 feet, but a square metre is about 10.76 square feet โ the factor is squared, not carried across.
How to use Square Kilometers to Square Miles
- Enter the number of square kilometers you want to convert.
- The equivalent in square miles appears instantly โ there is no button to press.
- Check the reference table for common Square Kilometers to Square Miles values.
Frequently asked questions
How do I convert square kilometers to square miles?
Multiply your square kilometers figure by 0.386102159 to get square miles โ or type a value above and read the answer straight off.
How many square miles are in one square kilometer?
1 kmยฒ = 0.386102159 miยฒ.
When would I need to convert square kilometers to square miles?
Used for the areas of cities, regions and countries, where reference sources differ on which unit they report.
What is a square kilometer, exactly?
The square kilometre is the area of a square one kilometre on each side โ one million square metres. A square kilometre is 100 hectares, and Central Park in New York is about 3.4 kmยฒ.
Where is the square mile actually used?
It is used for the areas of counties, states and large land holdings in the United States and United Kingdom. A square mile is 640 acres, or about 2.59 kmยฒ.
Is there anything tricky about area conversions?
Area conversions square the underlying length factor, which is why they feel counterintuitive. A metre is about 3.28 feet, but a square metre is about 10.76 square feet โ the factor is squared, not carried across.
Is this converter accurate?
Yes. It uses the exact standard factor of 1 kmยฒ = 0.386102159 miยฒ, and the conversion runs in your browser so nothing is uploaded.