Torus Calculator

Enter both values below

<-- Major Radius (R)
<-- Minor Radius (r)

How does the Torus Calculator work?

Calculates the volume of a torus and surface area of a torus given major radius and minor radius.
This calculator has 2 inputs.

What 4 formulas are used for the Torus Calculator?

  1. r = inner radius
  2. R = outer radius
  3. SA = 4π2Rr
  4. V = 2π2Rr2

For more math formulas, check out our Formula Dossier

What 4 concepts are covered in the Torus Calculator?

Distance from the center of a circle to the edge
surface area
the amount of space covering the outside of a three-dimensional shape.
A donut shape
SA = 4π2Rr
V = 2π2Rr2
quantity of 3-dimensional space

Example calculations for the Torus Calculator

  1. Torus large radius is 10 and small radius is 5
  2. Torus R = 20 and r = 10

Torus Calculator Video