Toroid Volume Calculator
Free online toroid volume calculator — enter major and minor radii to calculate torus volume. Useful for pipe design, mechanical parts volume estimation.
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📊 Result Chart
About Toroid Volume Calculator
The Toroid Volume Calculator is a free online tool that calculates the volume and surface area of a toroid (donut shape), with customizable major and minor radii. Works on mobile and desktop, all calculations run locally in your browser, your data never leaves your device.
Toroid Volume Calculator in 3 steps
- Enter the major radius (distance from center to tube center)
- Enter the minor radius (radius of the tube)
- Click "Calculate" to see the volume and surface area
How is toroid volume calculated?
The toroid volume formula is V = 2π²Rr², where R is the major radius and r is the minor radius.
What is the difference between major and minor radius?
The major radius R is the distance from the center to the tube center, and the minor radius r is the radius of the tube itself. R must be greater than r.