Geometry calculators
Geometry calculators find area, volume, and related measures for common shapes, with diagrams on selected pages.
Formulas assume the dimensions labeled on the figure (radius, side length, and so on). Pick the shape page that matches the figure you have, rather than forcing a rectangle formula onto a circle.
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Geometry
Area
Rectangle area from length and width.
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Geometry
Circle
Circle area, circumference, and diameter from radius.
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Geometry
Cone Calculator
Cone surface and volume.
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Geometry
Cylinder Calculator
Cylinder surface and volume.
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Geometry
Distance
Euclidean distance between two points in the plane.
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Geometry
Ellipse Area Calculator
Area of an ellipse from semi-axes a and b.
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Geometry
Polygon Angles Calculator
Interior sum and each exterior angle for a regular polygon.
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Geometry
Pythogorean Theorem
Hypotenuse of a right triangle from legs a and b (workbook spelling).
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Geometry
Regular Polygon Area Calculator
Area of a regular polygon from sides and side length.
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Geometry
Sphere Calculator
Sphere surface area and volume from radius.
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Geometry
Surface
Surface area of a rectangular box.
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Geometry
Volume
Volume of a rectangular box.
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