Area & Perimeter Calculator
Calculator ToolsArea of rectangle, triangle, circle and more
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History
All history →Area & Perimeter Calculator — at a glance
Calculate the area and perimeter (or circumference) of a rectangle, square, triangle, circle or parallelogram.
10 × 5 rectangle
Run
Area 50
How to use it — step by step
The dimensions of your shape.
1
Enter your values
Fill in the boxes. Sample values are already there so you can see how it works.
2
Calculate
Press the button to get your answer instantly.
3
Read the result
The main answer is shown in a large card with extra details below it.
4
Copy it
Use the copy button to save the result anywhere.
Pro tips
Small things that make the result better.
✦Use the same unit for every value.
✦1 square metre is about 10.76 square feet.
✦For a circle, enter the radius — half of the diameter.
Quick facts
Freeno signup, no limit
Instantresult in a moment
Privatenothing is uploaded
Any devicephone, tablet or PC
Frequently Asked Questions
How do I convert square units?+
Use the Unit Converter for area conversions such as square metres to square feet.
Is my data safe?+
Yes. Everything runs inside your own browser. Your text, files and images are never uploaded to any server.
Is this tool really free?+
Yes — completely free, no signup, no watermark and no usage limit.
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