How many squares are there in a 16 x 16 grid?

In a 16 x 16 grid, the total number of squares can be calculated by summing the squares of all possible sizes. This includes 1x1 squares, 2x2 squares, and so on, up to 16x16 squares. The formula to find the total number of squares in an ( n \times n ) grid is given by ( \frac{n(n+1)(2n+1)}{6} ). For a 16 x 16 grid, this results in 1,370 squares.