Convert Square Miles to Acres

Square Miles to Acres

Convert square miles to acres for land management and planning.

Unit Converter

How many Acres in a Square Mile

One square mile is equal to 640 acres:

1sq mi = 640 × 1 = 640ac

Square Miles to Acres Conversion Table

Square Miles (sq mi)Acres (ac)
1 sq mi640 ac
2 sq mi1,280 ac
3 sq mi1,920 ac
4 sq mi2,560 ac
5 sq mi3,200 ac
6 sq mi3,840 ac
7 sq mi4,480 ac
8 sq mi5,120 ac
9 sq mi5,760 ac
10 sq mi6,400 ac
20 sq mi12,800 ac
30 sq mi19,200 ac
40 sq mi25,600 ac
50 sq mi32,000 ac
60 sq mi38,400 ac
70 sq mi44,800 ac
80 sq mi51,200 ac
90 sq mi57,600 ac
100 sq mi64,000 ac

Common Use Cases

Real Estate and Land Sales

Convert large land parcels from square miles to acres for sales and marketing materials.

Agriculture

Calculate the total farmable land in acres when the area is given in square miles.

Conservation

Determine the acreage of protected areas or wildlife habitats for conservation efforts.