Convert from square to square inch

Unit Definition (square)
The square is a traditional unit of area, often used for measuring roofing material, finished lumber, and other building materials. One square equals 100 square feet, 11.111 square yards, or about 9.290 square meters.

Unit Definition (square inch)
The square inch is a traditional unit of area. 1 in² equals exactly 6.4516 cm² or 645.16 mm².