Volume of a torus Calculator

Calculates the volume and surface area of a torus given the inner and outer radii.

Volume of a torus
inner radius a
outer radius b
    1. b≧a

volume V
    1.  
surface area S
    1.  
    Volume of a torus
    [1-10] /68Disp-Num
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    [1]  2021/06/03 13:29   30 years old level / An engineer / Very /
    Purpose of use
    Calculate gland fill ratio of a troublesome o-ring joint.
    [2]  2020/10/27 11:41   Under 20 years old / High-school/ University/ Grad student / A little /
    Purpose of use
    The size for a coil
    Comment/Request
    Finding the Thickness that determine for the pressure and vacuum it can handle and freezing.
    [3]  2020/10/27 00:33   40 years old level / An office worker / A public employee / Very /
    Purpose of use
    Comparing bicycle tyre volumes - smaller wheel size vs wider tyre, and so forth. This was epically useful thanks.
    [4]  2020/08/19 22:54   60 years old level or over / An engineer / Very /
    Purpose of use
    Calculating the accurate water volume of a pipe bend for expansion volumes and percentage additions of water treatments. Pipe centre lines are commonly used
    [5]  2020/06/19 21:37   20 years old level / Others / Very /
    Purpose of use
    Finding relative weights of potential parts of a kinetic sculpture
    [6]  2020/04/03 00:00   60 years old level or over / A retired person / Very /
    Purpose of use
    Evaluate torus as ideal shape for closed environment of future cities. Rain capture, internal atmosphere and climate control, population density and mobility, regional adaptability for construction, other considerations.
    [7]  2020/03/27 00:03   Under 20 years old / Elementary school/ Junior high-school student / Very /
    Purpose of use
    to help under stand how to find volume of different shapes
    [8]  2020/02/21 03:25   50 years old level / An office worker / A public employee / Very /
    Purpose of use
    Finding volume of a easy to buy void to reduce the volume of a water tank
    Comment/Request
    Is the volume answer in cubiic units?
    [9]  2019/12/21 18:44   60 years old level or over / An engineer / Useful /
    Purpose of use
    comparison of internal volumes of BMX tires, assumed to track elastic properties
    [10]  2019/10/07 18:40   Under 20 years old / High-school/ University/ Grad student / Very /
    Purpose of use
    Decided to draw isometric sketches of shapes from online pages and the input units to find various calculations. This was all done out of boredom and I enjoy it.
    Comment/Request
    I had no idea that this site existed and am going to recommend this to others. Personally, I love looking at formulas as well. All I ask is the addition of a truncated torus and partial torus. what I mean is page for a torus but the cylinder that makes it up is like the cylinder on the "volume of a partial right cylinder" page, and another page for a torus but its cylinder does not wrap around all the way. The second one could just be "(torus formula) divided by degree of angle" or something like that, but I just would like to make sure. Thanks for the knowledge though!

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