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Starting Dungeons & Dragons can feel overwhelming. Between character sheets, spells, abilities, and rules, most beginners don't know where to start. One of the most common questions new players ask is simple: what dice do you need for D&D, and what do they all do? This guide covers everything you need to know about D&D dice — the full polyhedral set, what each die is used for, and how to actually use them at the table.
Dungeons & Dragons uses a set of seven polyhedral dice. Unlike the six-sided cube most people grew up with, these dice have unusual shapes — triangles, diamonds, and multi-sided solids. Each one is referred to by the letter "d" followed by the number of sides it has. A standard D&D dice set includes:
The core mechanic of Dungeons & Dragons 5th Edition is simple: whenever your character attempts something with an uncertain outcome, you roll a D20 and add relevant modifiers. If the total meets or beats a target number — called a Difficulty Class (DC) for skill checks, or the enemy's Armor Class (AC) for attack rolls — you succeed.
For example, if you're trying to pick a lock (DC 15) and your character has a +4 Dexterity modifier and proficiency in Thieves' Tools (+3), you roll 1d20 and add +7. If you roll a 9, your total is 16, and you succeed. If you roll a 5, your total is 12, and you fail.
The other dice come in when you need to deal damage, heal hit points, or determine the effects of certain spells and abilities. Different weapons use different dice to reflect their varying power levels.
D&D and other tabletop RPGs use a shorthand notation to describe dice rolls. Once you understand it, stat blocks, spell descriptions, and rulebooks become much easier to read.
The number before the "d" is always how many dice to roll. The number after is always the die type. Any number after a "+" or "−" is a flat modifier added to or subtracted from the total.
Pro tip: When you roll a Critical Hit in D&D 5e (a Natural 20 on an attack roll), you roll all the damage dice twice and add them together before adding your modifiers. So a longsword that normally deals 1d8+3 damage would deal 2d8+3 on a crit — not 2d8+6.
Technically, you need all seven dice in the standard set to play D&D. In practice, the ones you'll use most often are the D20, D6, D8, and D10. The D4 and D12 come up less frequently for most characters.
However, there's a catch: if you're playing a spellcaster, you'll roll different dice than a fighter. A Wizard casting Fireball needs 8d6, meaning they benefit from having multiple D6s. A Barbarian wielding a greataxe rolls 1d12 for damage on every attack, so that die gets a lot of use.
Here's a quick breakdown by class:
Before your first session, you'll need to generate your character's six ability scores: Strength, Dexterity, Constitution, Intelligence, Wisdom, and Charisma. The most popular method in D&D 5e is called "4d6 drop lowest."
Here's how it works:
For example, if you roll a 5, 3, 6, and 4, you drop the 3 and add 5+6+4 = 15. This method tends to produce heroic characters with above-average stats, which is why most tables prefer it over the flat 3d6 method.
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🎲 Roll 4d6 NowNothing beats the feel of a full set of polyhedral dice hitting the table. Many D&D players collect dice as a hobby, amassing bags full of sets in every color and material imaginable. But physical dice aren't always available or practical.
Online dice rollers like Quick Dice Roller are useful when you're playing D&D over video chat, when you've forgotten your dice bag, when you need to roll many dice quickly (8d6 Fireball, anyone?), or when you're exploring the game before committing to buying physical dice. Our roller supports all standard D&D dice and lets you roll up to 20 at once — enough for virtually any spell or ability in the game.
Roll in the open. Most D&D groups have an unwritten rule: dice rolls should be visible to other players. Hiding your dice can create trust issues at the table. Roll where everyone can see the result.
Announce what you're rolling before you roll it. Say "I'm rolling to attack" or "Dexterity saving throw" before you pick up the dice. It helps everyone follow along and reduces confusion.
Don't reroll unless the DM says you can. It's tempting to grab a die that fell sideways or landed poorly, but unless your DM explicitly says a roll doesn't count, it stands. This is part of what makes D&D exciting — the randomness is the game.
Know your modifiers before you roll. Add up your ability modifier and proficiency bonus for common rolls in advance so you can report your total quickly after rolling. It keeps the game moving.
Celebrate the Nat 20s, laugh at the Nat 1s. Critical hits and critical fails are some of the most memorable moments in D&D. Embrace them — they make for the best stories.
Yes, one standard seven-die set is enough to play any D&D character. You may need to roll the same die multiple times for things like 8d6 damage, but it works perfectly fine. Many experienced players own multiple sets simply for convenience or aesthetics.
The dice themselves haven't changed — D&D has always used the same polyhedral set. The difference is in how they're used. 5th Edition simplified many of the rules around rolling, replacing complicated modifier stacks with the "Advantage/Disadvantage" system, where you roll two D20s and take the higher or lower result.
For casual play, no — any polyhedral dice work fine. More expensive dice made from metal or resin are heavier and feel different but roll just as randomly. Some players claim certain dice are "lucky," but statistically, a fair die is a fair die regardless of what it's made of.
Advantage means you roll two D20s and use the higher result, giving you a better chance of success. Disadvantage means you roll two D20s and use the lower result. It's one of the most elegant mechanics in 5th Edition — simple to execute and dramatically impactful.