Advantage/Disadvantage Roller
Roll two dice at once and automatically take the higher result (advantage) or the lower result (disadvantage) — a common tabletop RPG mechanic.
What this generator does
Rolls two d20s and takes either the higher or the lower, the advantage and disadvantage mechanic used throughout modern tabletop play. Showing both dice matters: knowing what you avoided is part of the moment.
How to use this tool
- Choose the number of sides per die.
- Choose advantage or disadvantage.
- Roll to see both results and the one that counts.
Understanding the controls
- Advantage or disadvantage
- Advantage keeps the higher of the two, disadvantage the lower. Advantage shifts the average result up by around 3.3 on a d20; disadvantage moves it down by about the same.
Common use cases
- Ability checks with advantage or disadvantage
- Any game mechanic using roll-two-keep-one
Unofficial, system-agnostic fan tool. Not affiliated with or endorsed by any tabletop RPG publisher, and does not reproduce any publisher's rules, tables or setting material.