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Module · Math · Geometry
Area Calculator
Compute area of 8 common 2D shapes — rectangle, square, circle, triangle, trapezoid, ellipse, parallelogram, sector.
Area of rectangle
50
square units
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Guide
How Area Calculator works
Step 01
Pick a shape
8 common 2D shapes are supported.
Step 02
Enter dimensions
The tool asks only for what's relevant to the chosen shape.
Step 03
See area
Result in square units of your input.
FAQ
Frequently asked
Which formulas are used?+
Standard formulas — L×W for rectangle, πr² for circle, ½bh for triangle, ½(a+b)h for trapezoid, πab for ellipse, etc.
What units?+
Whatever you enter — the result is in those units squared. Consistent unit in, consistent unit out.