D100 Dice Roller
Roll percentile dice online — a true 1-to-100 result generated the same way tabletop players read two ten-sided dice as tens and ones.
Roll history
Your rolls will appear here.
A physical d100 roll is usually made with two ten-sided dice — one read as the tens digit, one as the ones digit — so a roll of "7" and "0" reads as 70. This d100 dice roller produces the equivalent 1-to-100 result directly, without needing to combine two separate dice by hand.
How Percentile Dice Work
Percentile dice give a flat 1% chance for each possible outcome from 1 to 100, which makes them ideal for tables, charts and any mechanic that needs fine-grained odds rather than the twenty steps a d20 provides.
When to Roll a D100
Percentile rolls show up across many rule systems, not just D&D.
- Percentile random-encounter and loot tables
- Wild magic surge and critical hit charts
- Skill checks in Call of Cthulhu and other percentile-based systems
- Any homebrew mechanic that needs 100 discrete outcomes
Frequently asked questions
What is a d100 or percentile die?
It is a die (or die pair) that produces a result from 1 to 100, giving each outcome an equal 1% chance — commonly used for tables and charts that need finer granularity than a d20.
How is a roll of 100 read?
A result of 100 is the highest possible percentile roll, equivalent to rolling double zero on two physical percentile dice.
Can I roll multiple percentile dice at once?
Yes, up to 10 at a time, with each individual result listed alongside the total.
Which games use d100 rolls?
Percentile mechanics appear in Call of Cthulhu, many Warhammer games, and as a supplementary table mechanic in D&D and Pathfinder.
Is this free?
Yes, completely free to use.