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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?
r = inner radius
R = outer radius
SA = 4π
2
Rr
V = 2π
2
Rr
2
For more math formulas, check out our
Formula Dossier
What 4 concepts are covered in the Torus Calculator?
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
Example calculations for the Torus Calculator
Torus large radius is 10 and small radius is 5
Torus R = 20 and r = 10
Torus Calculator Video