Circumcircle of a triangle Calculator

Calculates the radius and area of the circumcircle of a triangle given the three sides.

Circumcircle of a triangle
side a
side b
side c

circumradius r
    1.  
diameter φ
    1.  
circumcircle area Sc
    1.  
triangle area St
    1.  
area ratio Sc/St
    1.  
    Circumcircle of a triangle
    [1-10] /23Disp-Num
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    [1]  2023/04/08 09:14   60 years old level or over / Others / Useful /
    Purpose of use
    To determine the rough dimensions of a three bladed prop knowing the prop diameter only IOT transport it without doing the math…
    [2]  2023/03/10 06:10   60 years old level or over / An engineer / Very /
    Purpose of use
    Calculate bolt circle for automotive speaker knowing the distance between the unequally spaced mounting holes..
    Comment/Request
    Very helpful - didn't want to perform the trig. necessary to sort it out! Thanks.
    [3]  2023/01/31 01:08   40 years old level / Others / Very /
    Purpose of use
    Calculate diameter of light bulb needed based on the three equidistant metal spokes on which the shade rests and limit the bulb size.
    [4]  2022/12/01 10:11   40 years old level / An office worker / A public employee / Very /
    Purpose of use
    Calculate diameter of glass lamp shade needed based on the three equidistant metal spokes on which it rests.
    [5]  2022/11/26 13:12   20 years old level / High-school/ University/ Grad student / Useful /
    Purpose of use
    Minecraft building
    [6]  2022/09/21 00:21   30 years old level / An office worker / A public employee / Useful /
    Purpose of use
    Surprisingly needed this information as a software engineer
    [7]  2021/09/15 01:55   40 years old level / Others / Very /
    Purpose of use
    I am a machinist, I have a 3 fluted tapered tool that no longer matches the dimensions of the manufacture spec. I gathered the distance between flutes 1 & 3 and calculated the new diameter of the tool to use as an offset in the CNC machine.
    [8]  2021/04/30 00:52   Under 20 years old / Elementary school/ Junior high-school student / Very /
    Purpose of use
    Made sure that I was doing my geometry right.
    [9]  2021/01/14 01:33   20 years old level / A teacher / A researcher / Very /
    Purpose of use
    Find minimum pipe size accommodating triangular cross-section design
    [10]  2020/05/02 15:27   50 years old level / A retired person / Very /
    Purpose of use
    Calculate Pitch circle diameter (PCD) for part to be made with CNC router.

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