Rectangle Area Calculator
Calculate the area, perimeter, and diagonal of a rectangle. Enter Length and Width to get Area, Perimeter and Diagonal. Free, no signup — runs in your browser.
Parameters
Enter the required details below
Ready to Calculate
Enter your parameters and click calculate to see the results here.
How to Use
- Enter Length.
- Enter Width.
- Click Calculate to see Area, Perimeter and Diagonal.
- Check the result. Use Reset if you want to try different numbers.
About This Calculator
Calculate the area, perimeter, and diagonal of a rectangle. This tool is in the Math Calculators collection on Qalculators. Enter Length and Width to calculate Area, Perimeter and Diagonal. Results stay in your browser unless you copy them.
Frequently asked questions
What does Rectangle Area Calculator calculate?+
Calculate the area, perimeter, and diagonal of a rectangle. You enter Length and Width and receive Area, Perimeter and Diagonal.
What information do I need for Rectangle Area Calculator?+
You need Length and Width. Optional fields can stay at their defaults.
Is Rectangle Area Calculator free to use?+
Yes. Rectangle Area Calculator is free and does not require an account. The calculation runs in your browser.
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