How many inches in 4.666 square feet?

Answer 1

None, since there can be no conversion. An inch is a measure of length in 1-dimensional space while a square foot is a measure of area in 2-dimensional space. The two measure different characteristics and, according to the most basic principles of dimensional analysis, any attempt at comparisons or conversions between the two are fundamentally flawed.

Answer 2

There are 144 square inches in one square foot. Multiply that out gives you 671.9 square inches.