Tetrahedron Surface Area Table: Surface area by Edge length
Reference table of surface area for Tetrahedron Surface Area across a range of edge length values — exact, engine-computed figures you can read off at a glance.
Tetrahedron Surface Area Calculator
Verified formula Updated Jun 2026 Private — runs on your device
Verified formula
Private
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 Surface Area Calculator
The Tetrahedron Surface Area Calculator works out your surface area 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.
- Enter the edge length.
- Read off your surface area — the calculator updates automatically, with no button to press.
Formula
The Tetrahedron Surface Area Calculator uses the formula:
Surface area = √(3) × Edge length ^ 2
Worked example
For example, with edge length of 6, the surface area is 62.3538.
| Edge length | 6 |
|---|
| 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.
- Area
- The amount of two-dimensional space a shape covers, measured in square units.
Frequently asked questions
For a regular tetrahedron it is √3 × edge². An edge of 6 gives about 62.35 square units.
A solid with four identical equilateral triangle faces, the simplest of the Platonic solids.
Each equilateral face has area √3 ÷ 4 × edge², and four faces give √3 × edge².
A tetrahedron has 4 triangular faces, 6 edges and 4 vertices.
Enter the edge length. Read off your surface area — the calculator updates automatically, with no button to press.
Related guides
How to Calculate Tetrahedron Surface Area: Formula, Steps & Examples
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