Solid Circular Section

Welcome to our calculator for moment of inertia, also known as a rotational inertial calculator for a solid circular section. Enter the diameter (D) of your section below, and see the results in the output section below.
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Enter your inputs, and see outputs for Ixx and Iyy and section dimensions below!
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CalculationsInputs﻿﻿D
:20mm​
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OutputsMoment of inertia
﻿﻿Ixx
:7900mm4​
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﻿﻿Iyy
:7900mm4​
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Dimensions
﻿﻿Area
:314.159265mm2​
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﻿﻿xc
:10mm​
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﻿﻿yc
:10mm​
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ExplanationThe moment of inertia of a solid circular section can be calculated using the equations shown to the right. D represents the section's diameter
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Ixx=π64D4 Iyy=π64D4I_{xx} = \frac{\pi}{64}D^4 \\\ \\ I_{yy} = \frac{\pi}{64}D^4Ixx​=64π​D4 Iyy​=64π​D4
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