Rectangle Calculator
About Rectangle Calculator
Calculate rectangle area, perimeter, and diagonal.
How to Use
Calculate rectangle area, perimeter, and diagonal. Enter the Length and Width values and review the Area, Perimeter, and Diagonal outputs after you calculate.
- Open the calculator : Use Rectangle Calculator from the Math category.
- Check the inputs : Review the required values and any optional settings.
- Read the formula : Use the formula and notes below to understand how the result is produced.
Common Questions
What formula does the Rectangle Calculator use?
area = length*width.
Inputs
- Length
- Width
Outputs
- Area
- Perimeter
- Diagonal
Formula
area = length*width