Ellipse Perimeter Calculator
MathCalculate the perimeter, area, and eccentricity of an ellipse from its semi-major and semi-minor axes.
Perimeter
Perimeter, using Ramanujan's approximation.
Area
47.1239
Area of the ellipse.
Eccentricity
0.8000
How elongated the ellipse is.
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Odeh Ahwal0people find this calculator helpful
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Calculator Stats
Creators
Odeh Ahwal0people find this calculator helpful
Views
Helpful
Saved
Embeds
Math calculators
Frequently Asked Questions
How is perimeter calculated here?
Using Ramanujan's approximation, the same widely accepted formula used across ellipse calculators, since a general ellipse has no simple exact perimeter formula.
Why does this page also show area and eccentricity?
These are commonly needed alongside perimeter for the same ellipse, so they are included as bonus values here rather than requiring a separate lookup.
How is this different from the Ellipse Circumference Calculator?
They share the identical perimeter formula. This version additionally reports area and eccentricity, useful if you want more than just the one perimeter figure.
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