Roll d100
What a d100 is used for
The d100 (percentile die) resolves any check expressed as a percentage: loot tables, critical-hit charts, wild magic, and skill rolls in percentile systems such as Call of Cthulhu, RuneQuest and Warhammer Fantasy Roleplay.
Physically a d100 is usually two ten-sided dice — one read as tens, one as units — because a true 100-face die rolls like a marble. This roller returns 1–100 directly.
Is this roller fair?
Every result comes from crypto.getRandomValues, the same generator browsers use for security keys, so the distribution is uniform across all 100 faces. Nothing is sent to a server and nothing is stored.
Frequently asked questions
How do you roll a d100 with two dice?
Roll two d10s. One is the tens digit, one is the units. 0 and 0 together read as 100.
Is 00 on a d100 a 100 or a zero?
In most systems 00 plus 0 reads as 100, the highest possible result.
Does this roller need an account?
No. It runs entirely in your browser with no sign-up and no tracking of results.