Torus Volume Calculator

Online calculator to find volume and surface area of torus or donut shape using inner and outer radius.

Online calculator to find volume and surface area of torus or donut shape using inner and outer radius.

Code to add this calci to your website

Just copy and paste the below code to your webpage where you want to display this calculator.

Formula:

Surface Area = π²(R² - r²) Volume = π²(R + r)(R - r)² / 4 Where, R = Outer Radius r = Inner Radius