3D Solid Geometry Calculator
Compute the volume and surface area of spheres, cylinders, cones, cubes, boxes, pyramids and tori.
Overview
A 3D solid geometry calculator for students, engineers and makers. Pick a shape with shape=, supply the needed dimensions as key=value pairs (e.g. r=3, h=4), and it returns the exact volume and surface area along with the formula it applied. All calculations use Math.PI and the standard closed-form formulas, including the cone and pyramid slant-height surface terms.