Tetrahedron Calculator
Calculate the volume and surface area of a regular tetrahedron from its edge length.
- Surface area
- 43.3013
Formula: V = a³ / (6√2)
About Tetrahedron Calculator
Tetrahedron Calculator is a free online calculator that gives you an instant, accurate result as you type. Calculate the volume and surface area of a regular tetrahedron from its edge length.
The calculation uses the standard formula V = a³ / (6√2) and updates live with every change to the inputs. Everything runs client-side in your browser — fast, private, and free to use as often as you like.
The regular tetrahedron is the simplest Platonic solid: 4 triangular faces, 4 vertices, and 6 edges.
Frequently Asked Questions
Is Tetrahedron Calculator free to use?
Yes. Tetrahedron Calculator is completely free, with no sign-up, no downloads, and no usage limits. You can use it as many times as you like on any device with a web browser.
How accurate is this calculator?
The calculator applies the standard formula (V = a³ / (6√2)) with full floating-point precision and rounds only the displayed result. For most practical purposes the results are exact.
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