Convert acres to square miles

Free online converter from acres to square miles. Type a value to get an instant result, check the formula and use the quick reference table below.

acres (ac)

square miles (mi²)

1 ac = 0.0015625 mi²

Formula: mi² = ac × 0.0015625

Conversion table

acres (ac)	square miles (mi²)
1	0.0015625
2	0.003125
5	0.0078125
10	0.015625
20	0.03125
50	0.078125
100	0.15625
250	0.390625
500	0.78125
1000	1.5625

Popular values

2 ac → mi² 5 ac → mi² 10 ac → mi² 15 ac → mi² 20 ac → mi² 25 ac → mi² 30 ac → mi² 40 ac → mi² 50 ac → mi² 75 ac → mi² 100 ac → mi² 150 ac → mi² 200 ac → mi² 250 ac → mi² 500 ac → mi² 1000 ac → mi²

Frequently asked questions

How many mi² are in 1 ac?

1 ac = 0.0015625 mi².

How do I convert acres to square miles?

Multiply the value in acres by 0.0015625 to get square miles.

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