Square Area Formula: Area of a square = Length of 1 side²
Square Area Definition The Square Area Calculator will instantly calculate the area of a square if you enter in the size of one of the sides of the square. Since each of the 4 sides of a square are exactly the same size by definition then you can measure the size of any side of the square and enter it into the field below and press calculate to calculate the area of the square. If you need to calculate the area of rectangle, check out the Square Footage Calculator
How to Calculate Square Area Let's be honest - sometimes the best square area calculator is the one that is easy to use and doesn't require us to even know what the square area formula is in the first place! But if you want to know the exact formula for calculating square area then please check out the "Formula" box above.