ellipse calculator

enter the value and click "calculate", the calculation result will be displayed.

area = [π×r1×r2]
perimeter = [ 2×π×sqrt((r1² + r2²)/2) ]

choose a calculator:
 
radius(r1):
radius(r2):

calculation result:

ellipse area:
what is an ellipse? an ellipse is a closed curve in a two-dimensional plane, similar to an elongated circle. it is defined by two foci, which are two fixed points within the ellipse. the sum of the distances from any point on the ellipse to the two foci is equal to the major axis and remains constant.
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