There is no conversion formula.
An inch is a measure of length or distance while a square foot is a measure of area. The two measure different things and, according to basic principles of dimensional analysis, conversion from one to the other is not valid without some addition information.
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Since a foot is twelve inches, a square foot = 12x12 = 144 square inches.
144 sq inches144 of them.12 inches * 12 inches = 144 square inches.144144. 12 inches times 12 inches.1 foot is 12 inches. A square foot would be 12 inches long and 12 inches wide... that would be 12X12. You do the math, I won't finish your homework for you.9 sq. in. = 1 sq. ft.1 square foot=144 square inchesThere are 144 square inches in a square foot.144.One square foot is 144 square inches.a square foot is 12 inches x 12 inches so 144A square foot contains 144 square inches. One foot is 12 inches long, which has to be squared (12x12=144) to answer inches per square foot.1 foot = 12 inches1 square foot = 12 x 12 = 144 square inchesThere are 12 inches in every foot.Because the foot is squared, you square the 12.122 = 144There are 144 square inches in a square foot.9 sq. in. = 1 sq. ft.
38,9236111 square foot.
There are 144 square inches in one square foot.
1 square foot = 144 square inches. 3/4 square foot = 108 square inches.