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Math Calculators

Tetrahedron Volume Calculator

Verified formula Updated Jun 2026 Private — runs on your device

Enter details
units
Verified formula Private

Volume

25.4558

Surface area
62.3538

For general information only — not financial, tax, legal or medical advice. Verify before you rely on it.

How to use the Tetrahedron Volume Calculator

The Tetrahedron Volume Calculator works out your volume, along with 1 related figure in an instant. Enter edge length and the result updates as you type — it is free, needs no sign-up, and runs entirely in your browser so your figures stay private.

  1. Enter the edge length.
  2. Read off your volume, together with surface area — the calculator updates automatically, with no button to press.

Formula

The Tetrahedron Volume Calculator uses the formula:

Volume = Edge length ^ 3 ÷ (6 × √(2))

Worked example

For example, with edge length of 6 units, the volume is 25.4558.

Inputs used
Edge length 6 units
Results
Volume 25.4558
Surface area 62.3538

Results are estimates for educational use, not professional advice.

Key terms explained

Surface area
The total area of all the outer faces of a three-dimensional object.
Volume
The amount of three-dimensional space an object occupies, measured in cubic units.
Area
The amount of two-dimensional space a shape covers, measured in square units.

Frequently asked questions

For a regular tetrahedron, V = edge³ ÷ (6√2). An edge of 6 gives a volume of about 25.46 cubic units.

It is a pyramid with four identical equilateral triangle faces — the simplest of the Platonic solids.

The surface area is √3 × edge², the total of its four equilateral triangle faces.

No. These formulas assume all edges are equal. Irregular tetrahedrons need the coordinates of their vertices.

The Tetrahedron Volume Calculator uses the formula: Volume = Edge length ^ 3 ÷ (6 × √(2)). For example, with edge length of 6 units, the volume is 25.4558.

Enter the edge length. Read off your volume, together with surface area — the calculator updates automatically, with no button to press.

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