Convert acres to square miles
Instantly convert acres to square miles using our free online calculator. See the formula and a full reference table below.
square miles
1 acre = 1.5625e-3 square miles
Formula:
acres × 1.5625e-3 = square milesAcre → Square mile reference table
| acres | square miles |
|---|---|
| 1 acre | 1.5625e-3 square miles |
| 2 acres | 3.1250e-3 square miles |
| 5 acres | 7.8125e-3 square miles |
| 10 acres | 0.0156 square miles |
| 25 acres | 0.0391 square miles |
| 50 acres | 0.0781 square miles |
| 100 acres | 0.1563 square miles |
| 250 acres | 0.3906 square miles |
| 500 acres | 0.7813 square miles |
| 1000 acres | 1.5625 square miles |
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Frequently asked questions
How many square miles are in 1 acre?
1 acre equals 1.5625e-3 square miles.
What is the formula to convert acres to square miles?
Multiply the number of acres by 1.5625e-3 to get the equivalent in square miles.
Is this converter accurate?
Yes. All conversions use internationally recognized conversion factors with up to 6 decimal places of precision.