Geometry Calculator
Solve geometry essentials — areas, perimeters, volumes, angles — with diagrams described. Cover homework shapes in one tab — free, local, no signup.
How to Use the Geometry Calculator
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Frequently Asked Questions
Which shapes covered?
Triangles, rectangles, circles, cubes, cylinders, spheres — area, perimeter, and volume per shape with formulas shown.
What units are supported?
Consistent input units yield squared/cubed outputs. Mixing cm and m silently corrupts — convert first.
Steps shown?
Yes — formula with substituted values per calculation. Copy working into homework directly.
Do shape measures upload?
No — math runs locally in your browser. Numbers never leave your device.
Area of a circle with radius 5?
π × 25 ≈ 78.54 square units. Enter any radius and the tool pairs area with circumference the same way.
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Last updated October 2026