Octahedron Net Generator

Unfold an octahedron into 8 equilateral triangles — printable, with exact dimensions

An octahedron net unfolds the 8 equilateral triangle faces into a flat pattern. This calculator draws a zigzag strip net with fold lines, dimension labels, volume, and surface area.

The regular octahedron is one of the five Platonic solids — 8 faces, 6 vertices, 12 edges. Think of it as two square pyramids glued base-to-base. It's also the shape of a D8 die.

Every net is printable — use the share/export button to save, then print and fold into a real octahedron.

What is an octahedron net?
An octahedron net is a flat pattern of 8 equilateral triangles that folds into a regular octahedron. The most common layout is a zigzag strip of 7 triangles plus one extra triangle at the end.
How many faces does an octahedron have?
A regular octahedron has 8 equilateral triangle faces, 6 vertices, and 12 edges. It is the dual of a cube — their vertex/face counts are swapped.
What is the volume of an octahedron?
For edge length a, the volume is V = (√2/3)a³, approximately 0.4714a³.
Can I use this as a D8 dice template?
Yes! A regular octahedron is a D8 die. Print the net, number the 8 faces, add glue tabs along fold lines, and fold.
What can it graph?
It can plot explicit, implicit, and parametric functions, add points and geometry, and animate sliders on the same graph.
Can I use voice or a photo?
Yes. You can talk to the tutor, upload a worksheet or handwritten problem, and let the graph update from that input.
Will it explain the steps?
Yes. The AI explains what it is drawing and why, so you see the answer on the graph instead of getting only a final number.