Calculate the area of any shape — circle, rectangle, triangle, trapezoid, parallelogram, ellipse, or sector.
📏
Area Calculator
Math
Inputs
How useful was this tool?
How to Use This Calculator
1
Select the shape from the dropdown.
2
Enter the required measurements (A, B, C) — labels describe what each field means for the selected shape.
3
Click Calculate to get the area and related measurements.
How It Works
Each shape has its own area formula. Circle: πr². Rectangle: l×w. Triangle: ½×b×h. Trapezoid: ½(b₁+b₂)×h. Parallelogram: b×h. Ellipse: πab. Sector: (θ/360)×πr².
🔥 While you're here — tools people pair with this one