Square Miles to Acres
1 square mile = 640 acres
Converter Calculator
1 Square Miles = 640 Acres
Explanation
Multiply square miles by 640 because one square mile equals exactly 640 acres.
Common Conversion Values
| Square Miles | Acres |
|---|---|
| 0.1 | 64 |
| 0.25 | 160 |
| 0.5 | 320 |
| 1 | 640 |
| 2 | 1,280 |
| 5 | 3,200 |
| 10 | 6,400 |
| 25 | 16,000 |
| 50 | 32,000 |
| 100 | 64,000 |
How to use this hub
- Choose a converter family.
- If converting to/from grams from a volume unit, select an ingredient.
- For pure unit changes (volume↔volume or weight↔weight), use universal conversions.
If your conversion includes grams, you’ll choose an ingredient; otherwise you won’t.
Frequently Asked Questions
What defines this conversion?
The ratio follows exact international area definitions.
Is the reverse conversion available?
Yes. Use the switch button or open the Acres to Square Miles hub to view the mirror conversion.
Can I use decimals?
Yes. Decimal inputs are supported so fractional area values remain precise in calculator output.