Area Conversion Factors
meter2
cm2
ft2
in2
1 meter2
1
104
10.76
1550
1 cm2
10-4
1.076 x 10-3
0.1550
1 ft2
9.290 x 10-2
929
144
1 in2
6.452 x 10-4
6.452
6.944 x 10-3
1 square mile = 2.788 x 107 ft2=640 acres
1 acre = 43,540 ft2
1 barn = 10-28 m2
1 hectare = 104 m2=2.471 acres