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}

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- 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