How to convert square kilometers to acres
Square Kilometers and Acres both measure area, so converting is a single multiplication. One km² equals 247.105383 ac, so you multiply your square kilometers value by 247.105383.
Formula: acres = square kilometers × 247.105383. For example, 10 km² = 2,471.053828 ac.
Square Kilometers to Acres conversion table
| Square Kilometers (km²) | Acres (ac) |
|---|---|
| 1 | 247.105383 |
| 2 | 494.210766 |
| 5 | 1,235.526914 |
| 10 | 2,471.053828 |
| 25 | 6,177.634571 |
| 50 | 12,355.269142 |
| 100 | 24,710.538283 |
| 1,000 | 247,105.382835 |
Square Kilometers and Acres explained
Square Kilometers (km²): One million square metres, used for regions and countries.
Acres (ac): About 4,047 m², a traditional unit for land and farming.
When you'd convert square kilometers to acres
You'll convert square kilometers to acres whenever a measurement is given in one unit but you need it in the other — comparing square kilometers and acres figures across regions, following a recipe or spec, or double-checking a number. Because 1 km² is exactly 247.105383 ac, the result is precise every time.
Frequently asked questions
How many acres are in a square kilometer?
One km² equals 247.105383 ac. Multiply your square kilometers figure by 247.105383 to get acres.
What is the formula to convert square kilometers to acres?
acres = square kilometers × 247.105383. The factor 247.105383 is exact.
What is 2 square kilometers in acres?
2 km² = 494.210766 ac. You can enter any value in the converter above to get an instant result.
Is this Square Kilometers to Acres converter accurate?
Yes. It uses the standard conversion factor (1 km² = 247.105383 ac) defined by BIPM — SI Brochure (derived units), so results are exact to several decimal places.