Roll virtual dice for tabletop RPGs, board games, and more. Supports all standard dice (d4, d6, d8, d10, d12, d20, d100) with modifiers and history tracking.
Roll Dice
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Click to roll
Press SPACE to roll quickly
Format: XdY or XdY+Z (e.g., 2d6, 1d20+5, 3d8-2)
| Target | Chance (1d20) | With Advantage | With Disadvantage |
|---|---|---|---|
| 10+ | 55% | 79.75% | 30.25% |
| 15+ | 30% | 51% | 9% |
| 18+ | 15% | 27.75% | 2.25% |
| 20 | 5% | 9.75% | 0.25% |
| Nat 1 | 5% | 0.25% | 9.75% |
Click to roll virtual dice instantly. Standard dice notation: NdX+M where N = number of dice, X = sides, M = modifier. Example: 2d6+3 means roll two 6-sided dice and add 3. D20 is standard for D&D attack/skill rolls. D100 (percentile) uses two D10s (one for tens). Our roller uses cryptographically secure random numbers.
Dice notation follows the format XdY+Z where X is the number of dice, Y is the number of sides, and Z is a modifier. 2d6+3 means roll 2 six-sided dice and add 3 to the total. The modifier can be positive (+) or negative (-).
Online dice rollers use pseudorandom number generators (PRNGs) which are statistically random enough for gaming purposes. They produce uniform distributions over time. For cryptographic purposes, specialized random sources are needed, but for tabletop gaming, PRNGs are perfectly suitable.
Advantage means rolling 2d20 and taking the higher result. Disadvantage means rolling 2d20 and taking the lower result. This mechanic replaces most situational modifiers in D&D 5th Edition and significantly affects probability.
Common RPG dice include: d4 (tetrahedron), d6 (cube), d8 (octahedron), d10 (pentagonal trapezohedron), d12 (dodecahedron), d20 (icosahedron), and d100 (percentile, often two d10s). D&D primarily uses d20 for most checks.
The standard method is 4d6 drop lowest: roll 4 six-sided dice, remove the lowest die, and sum the remaining three. Repeat 6 times for all abilities. This gives a range of 3-18 with an average of about 12.2.
Roll Dice
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Click to roll