Geometry

Torus Calculator

Volume and surface of a torus from tube radius r and distance R to tube center.

Volume

Surface

This free Torus Calculator covers Volume and surface of a torus from tube radius r and distance R to tube center.

V = 2π² R r²; S = 4π² R r, with R > r > 0. Other geometry tools are linked below.

Torus Calculator — how it works

Volume and surface of a torus from tube radius r and distance R to tube center. Typical inputs are Major radius R and Minor radius r. How it works beside the form states the identity the Torus Calculator applies.

FAQ

How do I use the Torus Calculator?

Open the Torus Calculator, fill Major radius R and Minor radius r, and read the result. V = 2π² R r²; S = 4π² R r, with R > r > 0.

What formula does the Torus Calculator use?

The Torus Calculator uses the identity in How it works. In words: V = 2π² R r²; S = 4π² R r, with R > r > 0.

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