Unfold a tetrahedron into 4 equilateral triangles — printable, with exact dimensions
A tetrahedron net unfolds the 4 equilateral triangle faces into a flat pattern. This calculator draws the net with fold lines, dimension labels, volume, and surface area for any edge length.
The tetrahedron is the simplest Platonic solid — 4 faces, 4 vertices, 6 edges. Its net is a central triangle with 3 triangles radiating from each edge. Enter an edge length and the net redraws instantly.
Every net is printable — use the share/export button to save, then print and fold into a real tetrahedron.