An online dice roller lets you roll virtual dice of any denomination - from the classic six-sided D6 to the twenty-sided D20 used in tabletop RPGs - without needing physical dice on hand. Our free browser-based dice roller supports multiple dice at once and shows the total sum, making it ideal for board games, RPGs, and classroom activities.
What Are Standard Dice Types?
Tabletop games and role-playing games use a standard set of polyhedral dice, each identified by the number of sides (faces):
| Notation | Sides | Common Use | |----------|-------|------------| | D4 | 4 | Damage rolls in D&D | | D6 | 6 | Standard board game die | | D8 | 8 | Damage rolls in D&D | | D10 | 10 | Percentile rolls | | D12 | 12 | Damage for large weapons | | D20 | 20 | Skill checks and attacks in D&D | | D100 | 100 | Percentile systems |
You can also use custom dice with any number of sides from 2 upward.
How to Use the Dice Roller
- Select the die type - choose from D4, D6, D8, D10, D12, D20, D100, or enter a custom number of sides.
- Set the quantity - choose how many dice to roll simultaneously (e.g., roll 3D6 for character stats).
- Click Roll - the individual results for each die appear, along with the total sum. Click again to roll a fresh set.
Common Use Cases
- Rolling for hit points, damage, and skill checks in Dungeons & Dragons and other RPGs
- Replacing physical dice during online tabletop game sessions
- Making random decisions by rolling a D6 where each face represents an option
- Classroom probability exercises showing distribution of dice outcomes
- Generating random numbers for board games when physical dice are unavailable
- Creating random encounters or events in tabletop game master scenarios
Frequently Asked Questions
How many dice can I roll at once? The tool supports rolling multiple dice simultaneously. For typical RPG needs (like rolling 4D6 for character stat generation), the tool handles any reasonable quantity.
Is the dice roll truly random?
Yes. The tool uses the browser's cryptographically secure random number generator (crypto.getRandomValues()) to ensure each roll is unpredictable and fair.
What does "3D6" mean? It is standard dice notation: the number before "D" is the quantity of dice, and the number after "D" is the number of sides. "3D6" means roll 3 six-sided dice. "2D10+5" means roll 2 ten-sided dice and add 5 to the result.
Can I simulate advantage/disadvantage rolls from D&D 5e? Roll 2D20 and take the higher result (advantage) or lower result (disadvantage). The tool shows individual die results so you can apply the rule manually.
Use the Dice Roller free, no sign-up required.