Ellipse Calculator

Calculate area, perimeter, and eccentricity of an ellipse.

Semi-Major Axis (a)

Semi-Minor Axis (b)

Area

Perimeter

Eccentricity

Focal Distance (2c)

Linear Eccentricity (c)

All Geometry Calculators

Area, circumference

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Area, perimeter

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Volume, surface area

Volume, surface area

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Regular polygons

Area, perimeter

Between two points