geometry calculator

Regular Heptagon Circumradius Calculator

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

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

circumradius = side / (2 x sin(pi / 7))

The circumradius is the distance from the polygon center to any vertex in a regular heptagon.

Each side and angle must match for the formula to hold.

Example

Side Length 6 gives Circumradius 6. 9143.

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 Heptagon Apothem Calculator

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