Tetrahedron Volume Calculator
Calculate regular tetrahedron volume, surface area, face area, height, inradius, circumradius, and midradius from edge length or related values.
Regular tetrahedron volume
English intent for tetrahedron calculators is usually the regular tetrahedron case. The calculator therefore solves all outputs from edge length and also supports reverse inputs such as volume, surface area, height, inradius, and circumradius.
a is the edge length of the regular tetrahedron.
S is total surface area across four equilateral-triangle faces.
Outputs
| Output | Meaning |
|---|---|
| Volume | Space inside the tetrahedron. |
| Surface area | Total area of the four faces. |
| Height | Perpendicular height from a vertex to the opposite face. |
| Inradius and circumradius | Radii of the inscribed and circumscribed spheres. |
Frequently Asked Questions
Sources and References
Calculations are based on the listed reference sources. Links open in a new tab.
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