Free Torus Calculator - Calculates the volume of a torus and surface area of a torus given major radius and minor radius.

This calculator has 2 inputs.

This calculator has 2 inputs.

r = inner radius

R = outer radius

SA = 4π^{2}Rr

V = 2π^{2}Rr^{2}

For more math formulas, check out our Formula Dossier

R = outer radius

SA = 4π

V = 2π

For more math formulas, check out our Formula Dossier

- radius
- Distance from the center of a circle to the edge

C/2π - surface area
- the amount of space covering the outside of a three-dimensional shape.
- torus
- A donut shape

SA = 4π^{2}Rr

V = 2π^{2}Rr^{2} - volume
- quantity of 3-dimensional space