This tool calculates the diagonal length of a square when you provide the length of one of its sides.

## How to Use the Square Corner to Corner Calculator

To calculate the distance from one corner of a square to the opposite corner, follow these steps:

- Enter the length of one side of the square in the “Side A” input field.
- Enter the length of the adjacent side in the “Side B” input field.
- Click on the “Calculate” button.
- The result will be displayed in the “Result” field.

This calculator uses the Pythagorean theorem to calculate the distance between two opposite corners of a rectangle (or square). The formula used is:

**Result = sqrt(Side A ^{2} + Side B^{2})**

## Limitations

This calculator assumes that the input values for side A and side B form a right angle. It calculates the length of the diagonal as if the shape were a right-angle polygon. If the sides do not form a right angle, the calculated result will not be accurate.

## Use Cases for This Calculator

### Calculate the Diagonal of a Square

Enter the length of one side of the square, and the calculator will give you the length of the diagonal from one corner to the opposite corner. This is helpful if you’re planning to hang a picture or construct something that requires the diagonal measurement.

### Find the Side Length of a Square with a Known Diagonal

If you know the diagonal measurement of a square, input it into the calculator to instantly get the length of each side of the square. This comes in handy when you need to work with specifications that include diagonal dimensions.

### Calculate the Area of a Square Using the Diagonal

You can use this calculator to determine the area of a square based on the diagonal measurement provided. Simply enter the diagonal length, and the tool will compute the total area enclosed within the square.

### Determine the Perimeter of a Square with the Diagonal

If you have the diagonal of a square and need to find the perimeter, this calculator simplifies the process. Input the diagonal length to swiftly obtain the total distance around the square’s boundary.

### Check if the Given Diagonal is Valid for a Square

Input a diagonal length into the calculator to verify if it corresponds with a valid square or not. This helps in ensuring that the measurements align with the geometric properties of a square.

### Estimate the Area Covered by a Square with Known Diagonal

If you know the diagonal of a square but are interested in the approximate area it occupies, this calculator can provide you with a close estimate. Enter the diagonal length to get the area covered by the square.

### Compare Diagonal Lengths of Multiple Squares

You can use this calculator to compare the diagonal measurements of different squares quickly. Input the side lengths to find out how the diagonals vary across multiple square shapes, aiding in your comparative analysis.

### Calculate the Length of the Sides of an Inscribed Square

For a square inscribed within a circle, input the circle’s diameter to determine the sides of the square using this calculator. This is useful when working on geometric problems involving inscribed squares.

### Find the Side Lengths of Circumscribed Squares with Given Diagonals

Input the diagonal length of a circumscribed square to calculate the side lengths accurately. This feature is beneficial when you need to determine the dimensions of squares that are circumscribed around circles.

### Calculate the Diagonal of Multiple Squares Simultaneously

If you have various squares with different side lengths and want to find the diagonals quickly, use this calculator to get all the diagonal measurements at once. Enter the side lengths of each square for efficient calculations.