Dice Roller

Online Dice Roller: All Standard RPG Dice

Roll any standard tabletop dice online: d4, d6, d8, d10, d12, d20, and d100. Whether you play Dungeons & Dragons, Pathfinder, Shadowrun, or any other tabletop RPG, this tool replaces your physical dice with instant, fair digital rolls. Roll up to 20 dice at once, see each individual result, and track your full roll history.

Supported Dice Types

• d4: Used for small damage weapons (daggers, darts) and some healing spells.
• d6: The classic six-sided die. Used for damage, attribute generation (4d6 drop lowest), and many board games.
• d8: Common damage die for longswords, longbows, and healing word.
• d10: Hit dice for Rangers and Fighters; used in percentile rolls as the tens place.
• d12: Barbarian hit die and greataxe damage. One of the rarest dice in standard sets.
• d20: The iconic D&D die. Used for attack rolls, saving throws, skill checks, and ability checks.
• d100 / d%: Percentile die, equivalent to rolling two d10s (tens and units).

Dungeons and Dragons Dice Roller

This tool is fully optimized as a D&D dice roller. Whether you need a quick dungeon and dragon dice roller for your campaign, or a reliable dungeons and dragons dice roller for generating stats and calculating massive spell damage, our app has you covered. It handles complex ability score generation (like rolling 4d6 drop lowest) effortlessly. Plus, the extensive roll history ensures you never lose track of that critical hit during your session!

Complex Multi-Dice Rolls and Combinations

Some of the most impactful moments in tabletop RPGs involve unusual dice combinations. Well beyond a single d20 attack roll. Here are common multi-die scenarios this tool handles directly:

• 11d8 (Heal spell, upcasted): A 6th-level Heal spell restores 70 HP plus 11d8. Select d8, set quantity to 11, and roll. Individual results show the spread; the total gives the final HP value. Average: 49.5, maximum: 88.
• 8d6 (Fireball): The classic 3rd-level fireball damage. Set d6, quantity 8. Minimum: 8. Maximum: 48. Average: 28.
• 4d6 drop lowest: The standard D&D 5e ability score generation method. Roll d6, quantity 4, then discard the lowest of the four individual results shown. Repeat six times for a full ability score set.
• 2d10 percentile, two d10s (one as tens digit, one as units) give a 1–100 result. Or use the d100 preset directly, same distribution, one click.
• 3d6 straight: Old-school ability score generation with no dropping. Roll d6 × 3; sum the three results.
• 10d6 (Disintegrate): The 6th-level Disintegrate spell deals 10d6 + 40 damage. Type 10d6+40 and roll.

The tool supports up to 50 dice in a single roll, combining multiple types and modifiers effortlessly (e.g. 2d8+1d6+5). For a full breakdown of when these combinations appear in play and how to calculate averages on the fly, see our D&D Dice Roll Combinations guide.

Tie-breaker and Simple Decisions

Need a quick 50/50 call? For tie-breakers or yes/no decisions, our Coin Flipper is the fastest option. For word games, try our Random Letter Generator to pick a random starting letter for Scattergories and similar games.

How to Roll

1. Select a dice type from the d4–d100 grid.
2. Adjust the quantity using the + and − buttons (1–20 dice at once).
3. Click Roll or press Space / Enter on your keyboard.
4. See individual die results plus the total with a pop animation.
5. Your full roll history is tracked below. Clear it any time.

Fairness & Randomness

Each die roll uses crypto.getRandomValues(), the Web Crypto API, which draws entropy from your operating system's hardware random number generator. This means each face of any die has an exactly equal probability every roll, unlike physical dice which can develop wear-based bias over time. This tool is actually fairer than rolling physical dice at the table.

The Evolution of RPG Dice

Before the rise of standard d20 tabletop games, multi-sided dice were remarkably rare. The original 1974 edition of Dungeons & Dragons was one of the first games to popularize the full polyhedral set (d4, d6, d8, d10, d12, and d20), heavily influenced by wargaming and early educational materials that introduced platonic solids. Today, "rolling a natural 20" has become a cultural touchstone representing absolute success, while rolling a "nat 1" signifies a critical failure. Using our virtual dice roller ensures you never have to worry about losing your lucky d20 under the couch during a climactic campaign moment.

Virtual Dice vs. Physical Dice: The "Dice Jail" Debate

Many tabletop players are highly superstitious about their physical dice sets, often putting "misbehaving" dice in "dice jail" when they roll poorly. While fun, physical dice are often unbalanced. The manufacturing process, particularly the tumbling used to polish the dice, often rounds the corners unevenly and results in air bubbles inside the plastic. This causes certain numbers to appear more frequently. An online dice roller uses secure algorithms to guarantee perfect, unweighted randomness on every single roll, providing a mathematically fair outcome for your game mechanics.

Understanding Advantage and Disadvantage

A core mechanic in modern D&D (5th Edition) is the Advantage and Disadvantage system. When you roll with Advantage, you roll two d20s and take the highest result. With Disadvantage, you take the lowest. Statistically, rolling with Advantage adds roughly +5 to your average roll (changing the mean from 10.5 to 13.82) and drastically reduces the chance of rolling a 1 from 5% to just 0.25%. Our dice roller allows you to easily simulate this by setting the quantity to 2, letting you see both outcomes instantly before selecting the appropriate number.

What 4d6 Drop Lowest Actually Rolls

Rolling four six-sided dice and discarding the lowest is the standard way to generate D&D ability scores, but the shape of that distribution is rarely spelled out. There are 1,296 possible outcomes (6⁴). Enumerating all of them gives the exact table below — no sampling, no approximation.

The average is 12.24, and 13 is the single most common result, not the 10 or 11 many players assume. Dropping the lowest die is worth about 1.74 points per score compared with a straight 3d6, which averages exactly 10.5.

A few consequences worth knowing before you reroll a character:

• An 18 comes up in only 21 of 1,296 rolls. Across a full set of six scores, there is a 9.3% chance of rolling at least one.
• Just under half of all scores (48.8%) land at 13 or above.
• A score of 8 or lower — a negative modifier — happens 10.5% of the time, so in an average six-score array you should expect roughly one weak stat.
• A 3 requires all four dice to show 1. That is one outcome in 1,296.

What Advantage Is Really Worth

Advantage rolls two d20 and keeps the higher; disadvantage keeps the lower. The size of that swing depends entirely on the target number, and it is largest in the middle of the range rather than at the extremes.

Advantage is worth the most on a coin-flip roll: at DC 11 it turns a 50% chance into 75%, a gain of 25 percentage points. On a roll you were already going to make, or one you were never going to make, it barely moves the needle — at DC 20 it buys you under 5 points. Gain equals p − p², which peaks at p = 0.5.

Figures computed by exhaustively enumerating every outcome — all 1,296 for 4d6, all 400 d20 pairs — rather than by simulation, so they are exact rather than estimated. You can reproduce them yourself with a few lines of code.

Frequently Asked Questions

• What types of dice can I roll?

  This roller supports d4, d6, d8, d10, d12, d20, and d100, all standard dice for D&D, Pathfinder, and other tabletop RPGs. You can roll 1 to 20 of the same die type at once and see individual results plus totals.
• Is this dice roller fair?

  Yes. Each die uses crypto.getRandomValues(), giving every face an exactly equal probability. It is fairer than physical dice, which can develop bias from manufacturing imperfections or wear.
• How do I roll 4d6 drop lowest for D&D stats?

  Select d6, set quantity to 4, roll, then mentally drop the lowest result from the four shown. Repeat six times for a complete set of ability scores.
• Can I use this for D&D character creation?

  Yes! The 4d6 drop lowest preset is perfect for rolling ability scores. For a complete character sheet, try our Random RPG Character Generator which generates name, race, class, stats, and backstory instantly.