D6 Dice vs. Polyhedral RPG Dice
Comparing 2 standards across 19 specifications. 19 key differences identified.
The 6-sided die (D6) is the most common cubic die standard. Standard board game dice measure 16 mm (5/8 inches) with indented, painted pips and rounded corners. Precision casino dice measure 19 mm (0.75 inches) with razor-sharp 90° edges, serialized markings, and flush-drilled pips filled with density-matched epoxy to minimize weight bias and maximize roll fairness.
Polyhedral dice are standardized 7-die sets used in tabletop role-playing games (TTRPGs) including Dungeons & Dragons and Pathfinder. A standard set consists of D4 (tetrahedron), D6 (cube), D8 (octahedron), D10 (pentagonal trapezohedron), D% (percentile tens), D12 (dodecahedron), and D20 (icosahedron), manufactured in standard 16 mm to 22 mm millimeter heights based on Platonic solids.
Specification Comparison Table
19 Parameters| Parameter / Spec | ||
|---|---|---|
|
Standard Board Game D6 Size
|
16 mm (0.63 inches / 5/8 in) | — |
|
Precision Casino D6 Size
|
19 mm (0.75 inches / 3/4 in, ±0.0005" tolerance) | — |
|
Miniature / Wargaming D6 Size
|
12 mm (0.47 inches) | — |
|
Micro / Travel D6 Size
|
8 to 10 mm | — |
|
Opposite Faces Sum Rule
|
Always 7 (1 opposite 6, 2 opposite 5, 3 opposite 4) | — |
|
Right-Handed Pip Orientation
|
1-2-3 meet counter-clockwise at vertex Western standard | — |
|
Left-Handed Pip Orientation
|
1-2-3 meet clockwise at vertex Asian standard | — |
|
Casino Edge Style
|
Razor Edge (Sharp 90° corner) maximum bounce fairness | — |
|
Standard Set Composition
|
— | 7 Dice (D4, D6, D8, D10, D% tens, D12, D20) |
|
D4 Shape & Height
|
— | Tetrahedron (4 triangular faces) 16 to 18 mm (vertex to base) |
|
D6 Shape & Height
|
— | Cube (6 square faces) 16 mm (0.63 inches face-to-face) |
|
D8 Shape & Height
|
— | Octahedron (8 triangular faces) 15 to 16 mm (face-to-face) |
|
D10 / D% Shape & Height
|
— | Pentagonal Trapezohedron (10 kite faces) 16 mm (vertex-to-vertex) |
|
D12 Shape & Height
|
— | Dodecahedron (12 pentagonal faces) 18 mm (face-to-face) |
|
D20 Shape & Height
|
— | Icosahedron (20 triangular faces) 20 to 22 mm (face-to-face) |
|
Opposite Faces Sum (D6)
|
— | 7 (1+6, 2+5, 3+4) |
|
Opposite Faces Sum (D8)
|
— | 9 (1+8, 2+7, etc.) |
|
Opposite Faces Sum (D12)
|
— | 13 (1+12, 2+11, etc.) |
|
Opposite Faces Sum (D20)
|
— | 21 (1+20, 2+19, etc.) |