Acre to Square mile

1 ac = 0.0015625 mi²

Value

From

Precision & format

Significant figures

Notation

1 ac equals

0.0015625mi²

All 15 units

Square meterm²
4,046.856422
Square kilometerkm²
0.004046856422
Square centimetercm²
40,468,564.22
Square millimetermm²
4,046,856,422
Hectareha
0.4046856422
Area
40.46856422
Square milemi²
0.0015625
Square yardyd²
4,840
Square footft²
43,560
Square inchin²
6,272,640
Acreac
1
Roodrood
¼ acre
4
Sectionsection
1 mi²
0.0015625
Townshiptwp
36 mi²
0.00004340277778
Barnb
nuclear cross-section
4.046856422 × 10³¹

Acre to Square mile table

Common Acre values converted to Square mile
Acre (ac)	Square mile (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
1,000	1.5625

How the conversion works

Multiply the acre figure by 0.0015625 to get square mile. Every factor on this site is anchored to the SI base unit for area, so the same number is used everywhere it appears.

Going the other way, 1 mi² = 640 ac — see square mile to acre.

See all 15 area units →