"1 square foot (sq ft, ft2)",930,square centimeters,sq ft->sq cm
,144,square inches,sq ft->sq in
1 square inch(sq in),6.4516,sq centimeters,sq in->sq cm
,0.006944444,sq feet,sq in->sq ft
1 square meter (m2),10000,square centimeter,sq m->sq cm
,10.764,square feet,sq m->sq ft
,1550,square inches,sq m->sq in
1 square yard(sq yd),9,square feet,sq yd->sq ft
,1296,square inches,sq yd ->sq in

