144 of them are.
144 sq.inch.= 1 sq.ft.
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One square inch is 1/144 of a square foot.1 square inch = 0.006944 square foot (rounded)1 square foot = 144 square inches
144 square inches is one square foot
There are 2.54 cm in one inch or 25.4 mm in one inch or (25.4)2 mm2 in 1 sq..inch. There are 144 square inches in a square foot, therefore there are (25.4)2 x 144 square mm in one square foot. This is 92,903 mm2
144 square inches make one square foot Each square inch is 0.006944 of one square foot. (rounded)
One inch of rain over one square foot is 1/12 cubic foot of water. A cubic foot of water weighs about 62.4 pounds. 1/12 of that is about 5.2 pounds.