Area Calculator
Calculate the area of common 2D shapes: circle, rectangle, square, triangle, trapezoid, ellipse, parallelogram, and sector.
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What this calculator does
Area Calculator helps you quickly estimate calculate the area of common 2d shapes: circle, rectangle, square, triangle, trapezoid, ellipse, parallelogram, and sector. with clean output and clear next steps.
How the calculation works
Enter Shape, Dimension 1 (radius/length/base), Dimension 2 (width/height/angle) and this calculator uses standard formulas to determine Area and Perimeter / Circumference. The output is displayed immediately in a user-friendly format.
Example calculation
For example, enter realistic values into the Area Calculator to see how the calculator produces Area and Perimeter / Circumference that you can use for planning and comparison.
Disclaimer
The calculations provided by this website are for informational purposes only and should not be considered financial, legal, tax, or professional advice.
Frequently Asked Questions
What is the area of a circle?
Area = πr². For a circle with radius 7: Area = π × 49 ≈ 153.94 square units.