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Fun · Randomizer

Dice Roller

Roll any dice type online — D4, D6, D8, D10, D12, D20, D100 and custom sided dice. Roll multiple dice at once with animated results. Perfect for D&D, tabletop RPGs, board games, and probability experiments.

D4 D6 D8 D10 D12 D20
Multiple Dice
Roll History
Custom Sides
Dice Roller
Free · Instant · No signup

Select dice type and click Roll!

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Standard RPG Dice Explained

Tabletop RPGs like Dungeons and Dragons use a standard set of seven polyhedral dice. Each die is named for its number of faces: D4 (tetrahedron), D6 (cube), D8 (octahedron), D10 (pentagonal trapezohedron), D12 (dodecahedron), D20 (icosahedron), and D100 (percentile). A full set covers every situation in the game, from rolling to hit an enemy to determining spell damage to making skill checks.

D4 — Dagger & Magic
Used for small weapons like daggers, darts, and handaxes. Also Magic Missile damage and some cantrips. Physically the most painful die to step on.
D6 — The Classic
The standard board game die. Used for shortswords, fireballs, and most table games. Each face has a 16.67% chance of landing.
D8 — Longsword
Longswords, rapiers, and war picks use D8. Also the hit die for Bards, Monks, and Rangers in D&D 5e. Average result: 4.5.
D10 — Percentile
Two D10s form a D100. The tens die gives 00 through 90. The units die gives 0 through 9. A roll of 00+0 equals 100.
D12 — Greataxe
The rarest standard die. Greataxes deal D12 damage. Barbarians use D12 as their hit die. Average result 6.5 makes it the hardest-hitting single die.
D20 — The King
Used for every attack roll, ability check, and saving throw in D&D. Natural 20 is a critical hit. Natural 1 is a critical failure. The most iconic die in tabletop gaming.

How Modifiers Work

In D&D and most RPGs, you rarely roll a die and take the raw result. You add a modifier based on your character's ability scores. A Strength modifier of +3 means every Strength-based attack or check adds 3 to the die result. This roller handles modifiers directly: enter the modifier value and it adds automatically to every roll.

Advantage and disadvantage are key mechanics in D&D 5e. With advantage, roll two D20s and take the higher result. With disadvantage, take the lower. Rolling with advantage increases your average D20 result from 10.5 to approximately 13.8. Use this roller by setting count to 2 and reading the individual results.

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Frequently Asked Questions
What is a D20 critical hit?+
In D&D 5e, rolling a natural 20 (before modifiers) on an attack roll is a critical hit. You roll the damage dice twice and add modifiers once. A natural 1 is a critical miss regardless of modifiers.
How do I roll 2D6 plus 3?+
Set dice type to D6, count to 2, modifier to +3. The total shows (die1 + die2 + 3). Standard D&D notation: 2d6+3.
What is advantage/disadvantage in D&D?+
Advantage means roll 2D20 and take the higher result. Disadvantage means take the lower. Use this tool by rolling 2 dice and looking at the individual results to simulate advantage/disadvantage.
What does the D100 represent?+
Also called a percentile die. Roll 1d100 to get a result from 1 to 100. Used for percentage-based random tables, some RPG skill systems, and probability experiments. In physical dice, two D10s (one for tens, one for units) are typically used.
How is a D4 used in D&D?+
D4 is used for small damage weapons (daggers, darts), some spells like Magic Missile, and short rest hit point recovery for certain classes. It is the most awkward die to roll physically but works perfectly online.
Can I roll more than 6 dice at once?+
Yes, up to 100 dice simultaneously. The individual results are shown, plus the total with modifier. Results are animated in sequence.
What is the average result for each die type?+
D4: 2.5 | D6: 3.5 | D8: 4.5 | D10: 5.5 | D12: 6.5 | D20: 10.5 | D100: 50.5. The average is always (max+1)/2 for any fair die.
Can I use this for board games?+
Yes. Standard board games use D6. Games like Risk use multiple D6. Some games use D8 or D10. This roller handles all of these.
What is a custom-sided die?+
Enter any number of sides (2 to 10,000). A D2 is equivalent to a coin flip. A D3 (results 1, 2, 3) is sometimes used in RPGs. A D7 and other unusual dice are used in some specialty games.
How do I simulate a D&D character stat roll?+
Stats are rolled 4D6 drop lowest. Roll 4 dice, remove the lowest value, sum the remaining three. Do this 6 times for your six ability scores.
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