Volume calculator

Volume and surface area for boxes, cylinders, cones, spheres, pyramids and triangular prisms — with litre conversion.

Numbers stay in this browser — nothing is sent anywhere.

Exact geometry formulas (π = full precision). Pyramid = right rectangular pyramid. Triangular prism uses Heron's formula for the base; the height is the prism's length.

How to use

  1. Pick a shape and unit.
  2. Enter the dimensions.
  3. Read the volume, surface area, and litres.

What it supports

Exact geometry formulas at full π precision. Pyramid = right rectangular pyramid; triangular prism uses Heron's formula for the base (h is the prism length). Dimensions up to 1,000,000 of the chosen unit.

Related tools

Related guides