square centimeter  cm^{2}  1e04 m^{2}  
square meter  m^{2}  1 m^{2}  i square meter
 SI unit of area, equal to 10^{4} square centimeters, approximately 10.763 91 feet^{2}, or approximately 1.195 990 yard^{2}

are  are  1e+02 m^{2}  
hectare  ha  1e+04 m^{2}  
square kilometer  km^{2}  1e+06 m^{2}  i square kilometer
 Common metric unit of area

square inch  inch^{2}  6.4516e04 m^{2}  i square inch
 Traditional unit of area.
1 in^{2} equals exactly 6.4516 cm^{2} or 645.16 mm^{2}.

square foot  ft^{2}  9.2903e02 m^{2}  
square yard  yard^{2}  8.36127e01 m^{2}  i square yard
 Traditional unit of area.
1 yd^{2} equals 9 ft^{2}, 1296 in^{2}, or exactly 0.836 127 36 m^{2}.

square  sq  9.2903 m^{2}  i square
 Traditional unit of area. One square equals 100 feet^{2}, 11.111 yard^{2}, or about 9.290 meter^{2}.

square rod  rd^{2}  2.52929e+01 m^{2}  
rood  rood  1.01171e+03 m^{2}  i rood
 Traditional unit of area used to measure land. A rood is equal to 40 rod^{2}, 1210 yard^{2}, or 10 890 feet^{2}, 1011.714 meter^{2} or exactly 1/4 acre.

acre  ac or A  4.04686e+03 m^{2}  i acre
 Unit of area used for measuring real estate in Englishspeaking countries.

homestead  homestead  6.47497e+05 m^{2}  i homestead
 Historic unit of area in the United States, equal to 160 acres, 64.75 hectares, 1/4 square mile, or 1/4 section in U.S. government terminology

square mile  mile^{2} (int)  2.58999e+06 m^{2}  
section  sec  2.58999e+06 m^{2}  i section
 Traditional unit of area in the U.S., equal to 1 square mile. This unit is used by the U.S. Public Land Survey System, which applies to most of the U.S. except for the original 13 states, Alaska, and Hawaii.

township  twp  9.32396e+07 m^{2}  i township
 Traditional unit of area in the U. S., equal to 36 sections or the area of a 6 mile^{2} on a side (about 93.24 kilometer^{2}). Like the section, this unit is used by the U.S. Public Land Survey System, which applies to most of the U.S. except for the original 13 states, Alaska, and Hawaii.
