🎲 Dice for Dungeons & Dragons
Roll D4 through D20 for the world's most popular tabletop RPG.
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About Dice for Dungeons & Dragons Dice
Roll D4 through D20 for the world's most popular tabletop RPG.
Use this free online dice roller anytime — perfect for online gaming sessions, when you've lost your physical dice, or for quick decisions. Works on all devices with no download required.
Frequently Asked Questions — Dice for Dungeons & Dragons
Complete guide to all dice used in Dungeons & Dragons
What dice do you need for Dungeons & Dragons?
D&D requires 7 standard polyhedral dice: D4, D6, D8, D10, D12, D20, and D% (percentile, another D10 marked 00-90). Most starter sets include one of each. Experienced players often own multiple sets for rolling attacks, damage, and saving throws simultaneously.
What is the most important die in D&D?
The D20 is the most-used die in D&D, rolled for every attack, skill check, and saving throw. The iconic "roll for initiative" and "roll to attack" both use D20. A natural 20 (critical hit) is one of the most exciting moments in tabletop gaming.
How do attack rolls work in D&D 5e?
To make an attack: roll D20, add your proficiency bonus (if proficient with the weapon), and add the relevant ability modifier (Strength for melee, Dexterity for ranged/finesse weapons). If the total equals or exceeds the target's Armor Class (AC), the attack hits.
What is a saving throw in D&D?
Saving throws are D20 rolls to resist harmful effects. When hit by a Fireball, you make a Dexterity saving throw — roll D20 + Dexterity modifier + proficiency bonus (if proficient). Meeting or exceeding the spell's DC (usually 8 + spellcasting modifier + proficiency) reduces or negates the effect.
How does advantage and disadvantage work?
Advantage: roll 2D20 and use the higher result. Disadvantage: roll 2D20 and use the lower result. These never stack — multiple sources of advantage still mean rolling 2D20. Advantage and disadvantage cancel each other out, resulting in a normal single D20 roll.
What is a critical hit in D&D 5e?
Rolling a natural 20 on an attack roll is a critical hit. You roll each damage die twice (plus flat bonuses apply normally). For example, a longsword normally deals 1d8+5 — a crit deals 2d8+5. This doubles the dice, not the total, so a 1d8+5 crit averages 14, not 18.
What are hit dice and how do they work?
Hit dice determine your character's toughness. Each class has a hit die (D6 for Wizards, D8 for Rogues/Clerics, D10 for Fighters, D12 for Barbarians). At level 1, you get maximum hit points (e.g., 10 for a Fighter + Con modifier). At each level, roll your hit die and add Con modifier.
What does "roll with disadvantage" mean?
Rolling with disadvantage means rolling 2D20 and using the lower result. Common causes include attacking while prone, attacking a target you can't see, making a Strength check while weakened, or attempting tasks your character is specifically bad at.
How do I calculate ability score modifiers in D&D?
Ability score modifiers are calculated as: (score - 10) / 2, rounded down. Scores below 10 give negative modifiers. A score of 16 gives +3, a score of 8 gives -1, a score of 20 gives +5. These modifiers are added to relevant D20 rolls.
What dice are used for healing in D&D?
Healing dice vary by spell: Cure Wounds heals 1d8 + spellcasting modifier, Healing Word heals 1d4 + modifier, Mass Cure Wounds heals 3d8 + modifier. The Healer feat uses D6s, and a Barbarian's Rage healing uses their hit die. Most healing potions restore 2d4+2 hit points.
What is initiative in D&D and how do you roll it?
Initiative determines combat turn order. When combat begins, all participants roll D20 and add their Dexterity modifier. Results are ranked highest to lowest, and characters act in that order each round. Ties are broken by higher Dexterity modifier, then by player preference.
Can I play D&D without physical dice?
Absolutely! Online dice rollers are completely valid replacements for physical dice. Many players use digital tools for convenience, especially in online D&D sessions via Discord or Roll20. Our D&D dice roller simulates all 7 polyhedral dice with the same randomness as physical dice.