Acres to Square miles – acre to square mile Converter
1 acre = 0.0015625 mi²
Formula
mi² = acre × 0.0015625
Acres to square miles conversion table
| acres (acre) | square miles (mi²) |
|---|---|
| 0.25 acre | 0.000390625 mi² |
| 0.5 acre | 0.00078125 mi² |
| 1 acre | 0.0015625 mi² |
| 2 acre | 0.003125 mi² |
| 5 acre | 0.0078125 mi² |
| 10 acre | 0.015625 mi² |
| 20 acre | 0.03125 mi² |
| 50 acre | 0.078125 mi² |
| 100 acre | 0.15625 mi² |
| 200 acre | 0.3125 mi² |
| 500 acre | 0.78125 mi² |
| 1000 acre | 1.5625 mi² |
| 2500 acre | 3.90625 mi² |
| 5000 acre | 7.8125 mi² |
| 10000 acre | 15.625 mi² |
Acres and square miles are both area units. One acre equals 0.0015625 square miles; enter any value above for an instant result, or use the table for common conversions.
Sanity-check examples
1 acre = 0.0015625 mi²10 acre = 0.015625 mi²2.5 acre = 0.00390625 mi²
Common pitfalls and look-alike units
The mu is a Chinese market unit: 1 mu = 666.667 m² (about 666.67), not to be confused with the acre (≈ 4046.86 m²) or the hectare (10000 m² = 15 mu). Confirm which unit a land figure uses before converting.
Frequently asked questions
How many square miles are in a acre?
1 acre (acre) equals 0.0015625 square mile (mi²).
How do I convert acres to square miles?
Multiply the acre value by 0.0015625 to get square mile — for example, 2 acres = 0.003125 square mile.
How do I convert square miles back to acres?
1 square mile equals 640 acre. Use the swap button or the reverse conversion page linked on this page.