Dungeons & Dragons 5th Edition Dice Roller Online: Free D&D 5e Dice Generator
Free online dice roller tuned for Dungeons & Dragons 5e. Use the main roller to roll any dice combination.
Dungeons & Dragons 5th Edition (D&D 5e) is the most popular tabletop roleplaying game in the world, inviting players to create heroic characters and embark on grand adventures in a fantasy setting. Nearly every action in the game, from swinging a sword to persuading a monarch, is resolved by rolling a set of polyhedral dice. The core of D&D is uncertainty and chance, with the d20 determining success or failure and other dice like the d4, d6, and d8 calculating the magnitude of your actions, such as the damage from a spell or weapon.
While physical dice are a classic part of the experience, a specialized online dice roller offers speed, accuracy, and convenience, especially for online play. This D&D 5e dice generator is tailored specifically for the game's mechanics. It handles complex rolls, adds modifiers, and instantly resolves advantage and disadvantage, so you can focus on the story instead of the math. Whether you're a new player learning the ropes or a veteran DM managing a complex encounter, this free tool simplifies every roll.
How D&D 5e Dice Work
The twenty-sided die, or d20, is the heart of the D&D 5e system. It is used for the three main types of rolls: attack rolls, ability checks, and saving throws. When your character tries to do something where the outcome is uncertain, you roll a d20. For an ability check, like a Rogue attempting a Dexterity (Stealth) check to sneak past a guard, you roll a d20 and add your Dexterity modifier. For an attack roll, a Fighter rolls a d20 and adds their Strength modifier and proficiency bonus to hit a monster's Armor Class (AC). The goal is always to meet or beat a target number called a Difficulty Class (DC) or an AC.
The other dice, called polyhedral dice (d4, d6, d8, d10, d12), are primarily used for calculating variable results, most often damage. After a successful attack, you roll damage dice. For example, a shortsword deals 1d6 piercing damage, while the powerful Fireball spell inflicts 8d6 fire damage. These dice are also used for other game functions. A Cleric might use a d8 for their Divine Intervention feature, and a Barbarian uses a d12 for their Hit Dice. The percentile die (d100) is reserved for rolling on special charts, like the Wild Magic Surge table, to generate random and often chaotic magical effects.
A key mechanic in 5e is advantage and disadvantage. If you have advantage, you roll two d20s for your check, save, or attack and use the higher result. This significantly increases your chance of success. For example, attacking a creature that cannot see you grants advantage. Conversely, disadvantage forces you to roll two d20s and use the lower result, representing a hindrance. Attacking while poisoned, for instance, imposes disadvantage. This simple system elegantly models situational modifiers without complex math.
Using the Roller for D&D 5e
Our D&D 5e dice roller is designed for fast and intuitive use. To make a standard ability check or attack roll, select the d20. In the modifier field, enter your total bonus. For example, if you are a Level 5 Paladin attacking with a longsword, you might have a +3 Strength modifier and a +3 proficiency bonus, so you would enter +6. Your roll will be the d20 result plus that modifier.
For situations involving advantage or disadvantage, simply click the dedicated 'Advantage' or 'Disadvantage' button before you roll. The tool will automatically roll two d20s and show you the correct result based on your selection. To roll damage, like 3d8 for a lightning bolt, select the d8 from the dice options and set the quantity to 3. You can also create a private room to share your rolls in real time with your party, making it a perfect companion for remote sessions on platforms like Discord or Roll20.
Common Rolls
Strength (Athletics) Check
Your Barbarian wants to shove a heavy boulder. The Dungeon Master calls for a Strength (Athletics) check with a DC of 15. You roll a d20 and add your character's Strength modifier and proficiency bonus (if proficient). If the total result is 15 or higher, you succeed. Use the d20 roller and input your total Athletics bonus in the modifier field.
Greatsword Damage Roll
After a successful attack roll with a greatsword, you need to determine the damage. A greatsword deals 2d6 slashing damage plus your Strength modifier. To make this roll, simply select the d6 and set the quantity to 2. Add your Strength modifier to the total result of the two dice to find the final damage dealt to your target.
Dexterity Saving Throw
An enemy wizard casts *Fireball*. Your character must make a Dexterity saving throw to avoid the full force of the blast. The Spell Save DC is 14. You roll a d20 and add your Dexterity modifier (plus your proficiency bonus if your class is proficient in DEX saves). A result of 14 or higher means you take half damage; otherwise, you take the full 8d6 fire damage.
Attack Roll with Disadvantage
Your Ranger is trying to shoot an arrow at a target in dim light. The rules state you have disadvantage on the attack roll. Using the roller, you select the d20 and click the 'Disadvantage' button. The tool rolls two d20s, takes the lower value, and adds your attack modifiers to it to see if you hit the target's AC.
Frequently Asked Questions
How do critical hits work in D&D 5e?
A critical hit happens when you roll a natural 20 on a d20 for an attack roll. This is an automatic hit regardless of the target's AC. For the damage, you get to roll all of your attack's damage dice twice, then add your relevant ability modifier. For example, if your rapier attack normally deals 1d8 + 4 piercing damage, a critical hit would deal 2d8 + 4 piercing damage. Our roller makes this easy: just roll your damage dice a second time.
What is the difference between an ability check and a saving throw?
An ability check is a proactive roll your character makes to accomplish a task, like using a Strength (Athletics) check to climb a cliff or a Charisma (Deception) check to tell a convincing lie. A saving throw is reactive, a roll you make to resist or avoid a negative effect, like a Constitution save to fight off poison or a Wisdom save to resist a charm spell. Both use a d20 and add modifiers, but checks are initiated by the player's actions, while saves are a response to external threats.
When do I add my proficiency bonus to a roll?
You add your proficiency bonus (a value based on your character level) to any d20 roll involving something your character is proficient with. This includes: attack rolls using weapons you are proficient in, ability checks using skills you have proficiency in, and saving throws you are proficient in (as determined by your class). Spellcasters also add their proficiency bonus to their spell attack rolls and use it to calculate their spell save DC. Your character sheet keeps track of all your proficiencies.
What happens when I roll a natural 1 in D&D 5e?
A natural 1 on the d20 has specific consequences depending on the roll. For an attack roll, a natural 1 is an automatic miss, regardless of your bonuses. For a death saving throw, a natural 1 counts as two failures. However, according to the core rules, a natural 1 on an ability check or a saving throw is not an automatic failure. It is simply the lowest possible numerical result, which might still be high enough to pass a very low DC, though many DMs use a house rule where it always fails.
How do I roll for healing with Hit Dice?
Hit Dice allow you to heal during a short rest. The type of die you use is determined by your class: a d6 for Wizards, d8 for Rogues, d10 for Fighters, and d12 for Barbarians. During a short rest, you can spend one or more of your available Hit Dice. For each die you spend, you roll it, add your Constitution modifier to the result, and regain that many hit points. For example, a Fighter with a +2 CON modifier would roll 1d10 + 2 to heal.