Find the area of a square from a single side length. Because all four sides are equal, the area is simply the side multiplied by itself, so a square with a side of 8 has an area of 64 square units. This calculator also gives you the perimeter, which is four times the side, and the diagonal, which is the side multiplied by the square root of two. Squares appear everywhere from floor tiles and chessboards to garden plots and photo prints, so a quick area answer saves time on shopping and layout. Enter the side in any unit you like and the area returns in that unit squared, meaning feet give square feet. All arithmetic runs entirely in your browser at full precision with no data leaving your device, and the copy button lets you grab the area value for a spreadsheet or message in one click.
Square the side length, so a side of 4 gives an area of 16.
The diagonal is the side length times the square root of 2, following the Pythagorean theorem.
The perimeter is four times the side length since all four sides are equal.
Find the area of a square from a single side length. Because all four sides are equal, the area is simply the side multiplied by itself, so a square with a side of 8 has an area of 64 square units.
Yes. Square Area Calculator is completely free, with no sign-up and no usage limits.
Yes. Square Area Calculator runs in any modern web browser. There is nothing to download or install.
Yes. Square Area Calculator runs entirely on your device in your browser, so nothing you enter is uploaded to a server.