Cone volume, slant height, lateral surface, base area, and total surface area from radius and height.. Cone Calculator is a free online tool from the ToolsRift Math Calculators collection. It runs entirely in your browser — nothing to install, no signup, and your data never leaves your device.
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How to use Cone Calculator
Enter the base radius and vertical height and the calculator returns the volume, slant height, lateral surface, base area and total surface area.
Frequently asked questions
How is a cone's volume calculated?
Volume = (1/3)πr²h — one third of the equivalent cylinder's volume.
What is the slant height?
The distance from the base edge to the apex, found with l = √(r² + h²).
What is the total surface area of a cone?
Total surface area = πr² + πrl, the circular base plus the lateral (slant) surface.
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