Area Calculator


Calculate Area for Square, Rectangle, Circle, Triangle, Trapezoid and more




Area of Square
area of square Formula

Area of square = a * a = a2

a = length of one side

In square, all sides are equal in length
Enter Length of a




Area of Square :




Area of Rectangle
area of rectangle Formula

Area of rectangle = a * b

a = breadth, b = height

In rectangle, only opposite sides are equal in length
Enter Length of a
Enter Length of b



Area of Rectangle :



Area of Triangle
area of triangle Formula

Area of triangle
= (a * h) / 2

a = breadth, h = height

The base and the height of the triangle must be perpendicular to each other.
Enter Length of a
Enter Length of h



Area of Triangle :



Area of Circle
area of round Formula

Area of circle = p * r 2

r = radius
c = circumference (distance around
the circle)

Also, circumference = 2 * p * r
Enter Radius OR Circumference, NOT Both

Radius
(OR) Circumference



Area of Circle :


Area of Ellipse
area of ellipse Formula

Area of ellipse = p * a * b

a = 1/2 of the longest diameter (1/2 major axis),
b = 1/2 of the longest line which is perpendicular to a (1/2 minor axis)

Enter Length of a
Enter Length of b



Area of Ellipse :



Area of Parallelogram
area of paralellogram Formula

Area of paralellogram = a * h

a = breadth, h = vertical height (not the length of the side)
Enter Length of a
Enter Length of h



Area of paralellogram :



Area of Trapezoid
area of trapezoid Formula

Area of trapezoid =
1/2 (a + b) * h

a = breadth, b = top length, h = vertical height (not the length of the side)

Enter a
Enter b
Enter h



Area of Trapezoid :




 

Calculators
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