Area Formulas
Rectangle: A = l × w
Circle: A = π × r²
Triangle: A = ½ × b × h
Trapezoid: A = ½ × (a + b) × h
Ellipse: A = π × a × b
Area Calculator
Calculate the area and perimeter of common 2D shapes.
Area
0
Perimeter
0
Formula
-
Was this calculator helpful?
Thanks for your feedback!
What would make it better?