jsgreenawalt.com

Select a blender mesh object and switch into edit mode.  Select all faces by pressing the 'a' key.  At the top of the main blender window (the user preferences window header), you'll see some text that looks like this:

The "Ve" number is the number of vertices, and the "Fa" number is the number of faces. If a mesh is made up entirely of triangles, the triangle count is equal to the face count.  If a mesh is made up entirely of quads, the triangle count is equal to two times the face count (each quad is converted into two triangles on export). If a mesh is a mix of triangles and quads, you can convert it to triangles temporarily (ctrl-t in edit mode with all faces selected), check the face count, and then undo the triangle conversion (ctrl-z) if you want.

Note: the triangle count will be doubled if the mesh is double sided (the default for new meshes in Blender).

See Also:

• Polygon Limit
• Strategies for dealing with large meshes