Acre is an area and mile is a length, they cannot be converted
20 square miles = 12,800 acres.
if you mean square acres to square miles there are 12800 acres
'Square acres' is redundant. Just say acres. One square mile has 640 acres. 20 acres is 1/32 of a square mile
0.125
As asked, it is impossible to answer as acres are a measure of area (and are a square unit) whereas miles are a measure of length (and a linear unit). However, if you meant: are 100000 acres less than 20 SQUARE miles, then: Convert to the same units, then a comparison can be made: 1 square mile = 640 acres → 20 square miles = 20 x 640 acres = 12,800 acres < 100,000 acres → No, 100,000 acres are not less than 20 square miles.
Assuming the area is a rectangle, 242.42 acres.
There are no miles in any acres, and no acres in any miles.1 square mile = 640 acres
90 acres=0.141 square miles and I am sorry, but I do not know how many miles not squared are in 90 acres.
1,024,000 acres.
2,560 Acres.
There is 0.234375 miles in 150 acres
42,000 Acres = 65.625 Square Miles