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    Area & Drawings

    Ellipse Area and Perimeter Calculator

    Find ellipse area and a Ramanujan approximation for its circumference. Ellipse perimeter is an approximation; semi-axes are half-dimensions, not full widths. This browser-local calculator updates from numeric inputs and shows a labelled breakdown without uploading your data.

    MAKE IT SIMPLE
    Calculation assumptions

    Ellipse perimeter is an approximation; semi-axes are half-dimensions, not full widths.

    Result

    Worked examples

    Semi-major axis (m) 6 · Semi-minor axis (m) 4

    First calculated quantity: 75.3982 m²

    Find ellipse area and a Ramanujan approximation for its circumference. Ellipse perimeter is an approximation; semi-axes are half-dimensions, not full widths.

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