Square Foot Calculator Inches
Calculate square footage from measurements in inches. Enter length and width in inches to get the area in both square inches and square feet.
Inches to Square Feet Calculator
Enter length and width in inches. The calculator shows area in both square inches and square feet.
How to Calculate Square Footage from Inches
When measurements are in inches, calculate the area in square inches first, then convert to square feet by dividing by 144 (since 1 sq ft = 144 sq in).
Conversion Formula
Why 144?
One foot = 12 inches. One square foot = 12 × 12 = 144 square inches. Dividing square inches by 144 converts to square feet.
Example
A countertop measures 96 inches × 25 inches.
96 × 25 = 2,400 square inches
2,400 ÷ 144 = 16.67 square feet
Frequently Asked Questions
How do I convert square inches to square feet? +
Divide the area in square inches by 144 (since 12 × 12 = 144). For example, 1,440 square inches = 10 square feet.
Why divide by 144? +
One square foot = 12 inches × 12 inches = 144 square inches. Dividing by 144 converts sq in to sq ft.
When should I measure in inches? +
Use inches for smaller items like countertops, shelves, tiles, picture frames, and crafting projects.