geometry calculator

Regular Tetrahedron Inradius Calculator

Open this calculator for cases where a small arithmetic slip would otherwise force a full restart around regular tetrahedron inradius.

Important Use Notice

Informational calculator only. Verify important outputs independently before legal, tax, medical, engineering, safety-critical, contractual, employment, or compliance use.

Estimate

Enter job values, review the estimate, then use the decision hints before ordering or quoting.

Estimate Results

Enter values to see the result.

Formula

inradius = edge x sqrt(6) / 12

The inradius measures the distance from the center to each face in a regular tetrahedron.

Example

Edge Length 6 gives Inradius 1. 2247.

Check

Switching between degrees and raw ratios without noticing the change.
Rounding an intermediate value too early when the output feeds another step.

Next Step

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Regular Tetrahedron Circumradius Calculator

This page is tuned for clean geometry checks during drafting or homework around regular tetrahedron circumradius.

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Regular Tetrahedron Height Calculator

This tool works well for focused work where you only want one formula and one answer path around regular tetrahedron height.

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Regular Tetrahedron Surface Area Calculator

Next: regular tetrahedron surface area.