To determine the number of square inches in one square foot, we need to understand the relationship between these two units of measurement.
One foot is equal to 12 inches. Therefore, to calculate the area in square inches of a square foot, we can use the following formula:
Area (in square inches) = Length (in inches) × Width (in inches)
Since one square foot is a square, both the length and the width are equal to one foot. Converting that to inches gives us:
Area = 12 inches × 12 inches
Now, calculating that gives:
Area = 144 square inches
Therefore, there are 144 square inches in one square foot.