1 square mile = 2.58999 square kilometers
Convert square miles to square kilometers.
Both directions on one page — swap the units and the whole thing runs backwards.
Type a value, or “5cm to in”
1 row could not be read rows could not be read
The formula
km² = mi² × 2.58999
Worked through with a real value: 10 square miles = 25.8999 square kilometers.
Going the other way: mi² = km² × 0.386102, so 1 square kilometer = 0.386102 square miles.
What each unit is
- square mile mi²
- A million square yards, used for regional areas and maps in countries using imperial units.
- square kilometer km²
- A million square metres, and the unit used to describe land areas and map scales in most countries.
Conversion tables
| square miles (mi²) | square kilometers (km²) |
|---|---|
| 1 | 2.58999 |
| 2 | 5.17998 |
| 3 | 7.76996 |
| 4 | 10.36 |
| 5 | 12.9499 |
| 6 | 15.5399 |
| 7 | 18.1299 |
| 8 | 20.7199 |
| 9 | 23.3099 |
| 10 | 25.8999 |
| 20 | 51.7998 |
| 25 | 64.7497 |
| 50 | 129.499 |
| 75 | 194.249 |
| 100 | 258.999 |
| square kilometers (km²) | square miles (mi²) |
|---|---|
| 1 | 0.386102 |
| 2 | 0.772204 |
| 3 | 1.15831 |
| 4 | 1.54441 |
| 5 | 1.93051 |
| 6 | 2.31661 |
| 7 | 2.70272 |
| 8 | 3.08882 |
| 9 | 3.47492 |
| 10 | 3.86102 |
| 20 | 7.72204 |
| 25 | 9.65255 |
| 50 | 19.3051 |
| 75 | 28.9577 |
| 100 | 38.6102 |
Questions
How many square kilometers are in a square mile?
1 square mile = 2.58999 square kilometers.
How do I convert square miles to square kilometers?
Use km² = mi² × 2.58999. For example, 10 square miles = 25.8999 square kilometers.
How many square miles are in one square kilometer?
1 square kilometer = 0.386102 square miles.
What is 10 square miles in square kilometers?
10 square miles = 25.8999 square kilometers.
You are already here. The file tools are free too.
Merge and split PDFs, convert and resize images, cut out a background. Same deal as this page: no account, no watermark, and most of them never upload your file.