The Regular Polyhedrons Calculator

number of faces(4, 6, 8, 12 or 20)  
length of edge = units
surface area = square units
volume = cubic units
in-diameter= units
circum-diameter = units
Significant figures:
Name faces vertices edges D-angle  
tetrahedron 4 4 6 70.533
cube 6 8 12 90
octahedron 8 6 12 109.467
dodecahedron 12 20 30 116.565
icosahedron 20 12 30 138.190