Dice Roller

Roll tabletop role-playing game (RPG) dice (d4, d6, d8, d10, d12, d20, d100) or custom multi-sided dice with additive modifiers.

How to use this calculator

1. Set dice count and sides.
2. Enter modifier.
3. Read total sum.

Formula & method

Uniform Random Distribution

Total = Σ(Random(1..M)) + Mod

Unbiased fair rolls.

Example

2d6+3 = [4, 5] + 3 = 12.

Key insights

• Multiple dice create a bell curve probability.

How to interpret your result

Total Result

Sum of dice rolls plus modifier.

Frequently asked questions

Fair rolls?

Yes, unbiased pseudo-random generator.

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