Advantage and disadvantage roll two d20 and keep one. They need 1 d20.
Dice, plus or minus dice or numbers. Up to 100 dice, 2 to 1000 sides.
DnD Dice Roller
Roll any die from a d4 to a d20, or a d100, without owning a set. This DnD dice roller picks each result with your browser's secure random tool, so every face has the same chance.
Use it for a tabletop session, a quick solo check, or as a spare when someone forgot the dice bag.
How to Use the D&D Dice Roller
- Pick the die. Choose how many dice and which type.
- Roll. The result shows straight away.
- Add your modifier. Type a number from -10000 to 10000 in the modifier field, or type a whole roll such as 2d6+3 in the notation box.
- Roll again for the next check.
The Dice in a Standard Set
| Die | Faces | Typical use |
|---|---|---|
| d4 | 4 | Damage for small weapons and some spells |
| d6 | 6 | Damage, fireball, general rolls |
| d8 | 8 | Damage for many weapons |
| d10 | 10 | Damage for heavier weapons |
| d12 | 12 | Damage for great weapons |
| d20 | 20 | Attacks, saving throws, ability and skill checks |
| d100 | 100 | Percentile tables and random events |
A d100 is read as two ten sided dice, one for tens and one for ones. A result of 00 and 0 counts as 100.
D20 Dice Roller: Advantage and Disadvantage
In 5th edition, with advantage you roll two d20s and keep the higher one. With disadvantage you keep the lower one. This changes the odds a lot.
| Roll | Chance of a natural 20 | Average result |
|---|---|---|
| One d20 | 5% | 10.5 |
| With advantage | 9.75% | about 13.8 |
| With disadvantage | 0.25% | about 7.2 |
Advantage almost doubles your chance of a natural 20. Rolling 15 or higher on one d20 is 30%. With advantage, it is 51%.
Dice Roller 5e: Common Rolls
- Attack roll: d20 plus modifiers, against the target's armor class.
- Saving throw: d20 plus modifier, against a difficulty number.
- Ability or skill check: d20 plus modifier, against a difficulty number.
- Damage: the dice for the weapon or spell, such as 1d8 or 8d6.
- Hit points at level up: the class hit die, such as a d8 or a d12.
- Initiative: d20 plus your Dexterity modifier.
Online DnD Dice Roller: Is It Fair?
Yes. Each face has exactly the same chance. Your browser's secure random tool picks the roll first, and the display follows. Physical dice can be slightly uneven, especially cheap ones. A digital roll has no such flaw.
Some tables prefer physical dice because rolling is part of the fun. Use this as a backup, for online games or for quick solo play.
20 Sided Dice Roller for Other Games
A d20 works outside role-playing games too. Use it to pick a number from 1 to 20 for a class, a draw or a turn order. For a plain number pick, try the random number wheel or 1 to 6. For a quick decision, use the yes or no wheel.
D100 Dice Roller and Percentile Rolls
A d100 gives a number from 1 to 100, with a 1% chance for each. Use it for random event tables, like "on a roll of 1 to 10, something strange happens", and for percentage chances.
Frequently Asked Questions
Is this a free DnD dice roller?
Yes. It is free, and you do not need an account.
Which dice can I roll?
You can roll d4, d6, d8, d10, d12, d20 and d100, up to 100 dice at a time. In the notation box any die from 2 to 1000 sides works, like 1d30.
How does the d&d dice roller handle advantage?
Choose one d20, then press Advantage or Disadvantage. The tool rolls two d20s, keeps the higher one for advantage or the lower one for disadvantage, and shows both rolls.
Is the dice roller 5e only?
No. It works for any game that uses these dice. That includes other tabletop games and classroom math.
Is the roll truly random?
Yes. It uses your browser's secure random tool, and each face has the same chance.
Does it work on a phone?
Yes. It runs in any modern browser.
Dungeons & Dragons and D&D are trademarks of Wizards of the Coast LLC. This site is not affiliated with or endorsed by them. We use the names only to describe the dice used in the game.