The square inch is a unit of area and is an imperial unit with the symbol in².
One square inch is equal in area to a square with edges one inch in length.
The square inch is a common unit of measurement in the UK and US.
The square yard is a unit of area and is an imperial unit with the symbol ya².
One square yard is equal in area to a square with edges one yard in length. It also equals 1,296 in² and ≈ 0.836 m².
The square yard is a common unit of measurement in the UK and US.