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Roll 1d20 online – a 20-sided die

MODIFIERS

Add bonuses, penalties or multipliers. They apply from top to bottom.

1d20 · one choice from 20 outcomes

A little drama in twenty faces ⚔️

A D20 is familiar from checks, attacks, and saving throws in many RPGs. Read its face, apply the modifier your rule requests, and compare the result with the target. Sometimes the scene becomes heroic; sometimes the die simply shows 7.

D20 dice illustration — The quest marker points directly toward lunch.

⚔️ D20 Roller - Heroism Optional, Dramatic Pause Included

The D20 is famous enough that people expect every roll to contain a story. Sometimes the story is "you rolled 7 and nothing exploded." That is still a valid story.

💀 Natural 1

Traditionally dramatic. Not legally required to ruin your evening.

🎲 2-19

The large middle where most actual probability lives.

✨ Natural 20

Very exciting. Still only one face out of twenty.

🧙 What people use it for

RPG checks, saving throws, attack rolls, twenty-item tables, random events and any situation where a broad readable range feels useful.

Encounter: Kitchen, CR unclear

Critical success: the noodles are ready. Critical failure: you forgot the water. On a 7, you simply eat lunch like a normal person.

5%each face

20possible results

1dramatic die

Quest exits: D12 · D22 · D100

for players / practical use

The familiar check behind the dramatic pause

Attack rolls, checks and saving throws in D20-style RPGs.
Dungeons & Dragons and Pathfinder style resolution.
Twenty-entry random tables and encounters.
Roll-twice mechanics where the game tells you to keep one result.

⚡ Common rolls

Roll 1d20 Roll 2d20 Roll 3d20

A single D20 is flat: every face has a 5% chance. Rolling 2d20 and keeping the higher or lower result changes the odds dramatically, so only do that when your game calls for it.

A twelve can meet a target of fifteen

Suppose a check needs a total of at least 15 and your modifier is +3. A raw 12 becomes 15 and meets that target. Without any special automatic-success rule, raw results 12–20 succeed: nine faces out of twenty, or 45%.

One example selection · D20

Twenty after a bonus is not natural twenty

A natural 20 is the unmodified die result. A roll of 17 plus a +3 bonus totals 20 but is not a natural 20. Whether natural 1 or 20 has a special effect depends on the game and the kind of roll.

Choose the job before the dramatic pause

Use it for a D20-based check or a twenty-entry random table. To resolve a check, read the raw die, apply the modifier the rule specifies, and compare the adjusted result with the required target.

A second D20 changes how you read a check

For advantage or disadvantage, roll two D20s and keep the higher or lower individual result when the rule calls for it. Do not use their sum. The game-specific D&D page provides presets for that procedure.

Five percent for each natural face

5%per named result in the uniform-die model

The average raw face is 10.5. A modifier changes the target comparison, while the chance of any particular unmodified face remains one out of twenty in the standard model.

🎲 Roll⌨️ Enter👆 Tap the dice🔊 Optional sound