None.
An inch is a measure of 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.
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450 sq ft = 64,800 sq inches.
2,000 sq ft = 288,000 sq inches.
4.5 inches by 36 inches is 1.125 sq ft
2 sq ft = 2*144 = 288 sq inches.2 sq ft = 2*144 = 288 sq inches.2 sq ft = 2*144 = 288 sq inches.2 sq ft = 2*144 = 288 sq inches.
1 sq ft = 144 square inches