1 sq mi = 640 ac => 30 000 ac = 30 000 / 640 = 46.875 sq mi
One billion acres is equal to approximately 1,562,500 square miles.
An acre is 4,840 square yards.A square yard is 3 feet x 3 feet, which is 9 square feet.4,840 square yards ( 1 acre) is 4,840 x 9 square feet, which is 43,560 square feet.18 acres is therefore 18 x 43,560 square feet, which is 784,080 square feet.
1200000 sq ft is equal to approximately 27.47 acres.
1.5 sq miles = 1.5*1760*1760 sq yards = 4 646 400 sq yards 1 acre = 4 840 sq yd so 1.5 sq miles = 4 646 400 / 4 840 = 960 acres.
Your question is nonsense as:miles are a unit of length; whereasacres are a unit of area.However, if you mean how many SQUARE miles are in 31/2 acres:1 acre = 1/640 sq mi→ 31/2 acres = 31/2 x 1/640 sq mi= 7/1280 sq mi≈ 0.0055 sq mi
94763 sq miles = 60648320 acres.
266853 sq miles = 171 million acres
679360 sq mi = 434,790,400 acres
70,699.79 sq mi = 45,247,865.6 acres
1 sq mi = 640 acres
36 square miles = 23,040 acres.
There are 640 acres to 1 square mile, 1 acre = 1/640 sq mi 14,000 acres = 14000/640 sq mi = 21.875 sq mi = 21 7/8 square miles
1 square mile = 640 acres: (206 sq. mi)x(640 acres/sq.mi) = 131840 acres
100 mi X pi =314 sq mi = 200,960 acres
31 million sq ft = 711.6621 acres (to 4 dp)
The area of Libya is 679,359 sq mi.