🎲 Dice Roller
Roll virtual dice for D&D, board games, and tabletop RPGs. Supports d4, d6, d8, d10, d12, d20, d100. Roll multiple dice at once, add modifiers, and track your roll history.
Critical Hit
d20: 5%
Natural 20
Most Common
2d6 = 7
16.67% chance
Percentile
d100
1% increments
Average
d20 = 10.5
Expected value
Virtual Dice Roller
Select Dice Type
🎯 Results
Common D&D Rolls
Dice Probabilities
Roll History
📚 About Dice Rolling
🎲 Dice Notation
Dice are written in notation like "2d6+3" meaning: roll two 6-sided dice, add 3 to the total. The number before 'd' is how many dice, after 'd' is sides per die.
⚔️ D&D Dice
- d20 - Attacks, saves, checks
- d12 - Barbarian damage
- d10 - Heavy weapons, percentile
- d8 - Medium weapons, healing spells
- d6 - Rogue sneak attack, fireball
- d4 - Small weapons, guidance
📊 Probability
Each die has equal probability for each face. Multiple dice create a bell curve - middle results are more common. Great for game balance!
🎯 Critical Hits
In D&D, rolling a 20 on a d20 is a critical hit (double damage dice). Rolling a 1 is a critical fail (automatic miss).
❓ Frequently Asked Questions
Are these dice truly random?
Yes! Our dice roller uses JavaScript's Math.random() which provides statistically random results suitable for games. Each roll is independent and fair. The algorithm is cryptographically secure enough for casual gaming.
What does "2d6+3" mean?
2d6+3 means: roll 2 six-sided dice, add the results together, then add 3 to the total. The 'd' stands for dice, the number before is quantity, after 'd' is sides. The modifier is added after summing all dice.
Can I roll dice with advantage/disadvantage?
You can simulate advantage/disadvantage by rolling two d20s and manually choosing the higher (advantage) or lower (disadvantage) result. We'll add an automatic advantage/disadvantage feature in a future update!
What's a d100 used for?
d100 (percentile dice) is used for percentage rolls, random tables, and determining outcomes with 1% increments. Common in D&D for wild magic surges, random encounters, treasure tables, and character background generation.
Can I save my roll history?
Yes! Your roll history is automatically saved in your browser's local storage. It will persist even after closing the browser. You can clear it anytime using the "Clear History" button.
⚠️ Note: This dice roller is for entertainment and gaming purposes. Results are random and fair for all your tabletop needs! Perfect for D&D, Pathfinder, Call of Cthulhu, and any other TTRPG.