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Virtual Dice Roller

Roll virtual dice for any game. Choose from standard 6-sided dice or create custom dice with any number of faces.

Number of Dice (1-100):

Non-Conventional Dice Roller

Simulate polyhedral dice like d4, d8, d10, d12, or d20. This tool allows you to specify any number of faces to generate random numbers for RPGs or statistical experiments.

Roll Results
Total Sum: 0
Sides on Dice:
Number of Dice:

Understanding Dice and Probability

A die is a small, throwable object with multiple faces used for generating random numbers. While the 6-sided cube is the most common, gamers and statisticians often use a variety of shapes.

Common Dice Shapes

  • Tetrahedron (d4): 4 faces.
  • Cube (d6): 6 faces – the standard die.
  • Octahedron (d8): 8 faces.
  • Pentagonal trapezohedron (d10): 10 faces.
  • Dodecahedron (d12): 12 faces.
  • Icosahedron (d20): 20 faces – common in Dungeons & Dragons.

How Random are Physical Dice?

In theory, a die should have an equal probability of landing on any face. However, mass-produced dice are rarely perfectly uniform. Small air bubbles, uneven cooling, or asymmetrical polishing can make certain sides slightly heavier, leading to biased results.

The Salt Water Balance Test

You can test the physical balance of your dice using a simple density test:

  1. Fill a small container with warm water.
  2. Add salt and stir until the water is saturated and the die floats.
  3. Flick the die in the water. If it consistently rotates to show the same number, the die is unbalanced.

Virtual vs. Physical Dice

Virtual dice rollers use pseudo-random number generating algorithms (PRNG). While not "truly" random in a quantum sense, they are generally much more consistent and fair than mass-produced physical dice, which are subject to physical defects and surface friction.