Dice Roller (RPG Notation)
Rolls dice from standard RPG notation: any number and size of dice, modifiers, and keep-highest / keep-lowest rules like 4d6kh3. Shows every individual die, the total, and the exact probability distribution of your expression.
Runs 100% in your browser — nothing you generate leaves your device.
Read the full guide to this tool
Notes
- Notation: NdS rolls N dice with S sides; +/− adds modifiers or more dice; kh3/kl1 keeps the highest 3 or lowest 1; d% is a percentile d100.
- Multiple dice add up to a bell-shaped distribution: 3d6 rolls 10 or 11 far more often than 3 or 18, while a single d20 is flat.
- Everything runs locally in your browser; nothing you enter or generate is sent to any server.
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