Dice Roller
Free online dice roller — roll d4 to d100, multiple dice, and a modifier for board games and tabletop RPGs, with the total and average.
Everyday Uses
Board games
Roll dice when the physical ones have gone missing.
Tabletop RPGs
Roll d20s and 2d6+3 style rolls for D&D and more.
Decisions & giveaways
Pick a fair random winner or settle a tie.
Classroom
Demonstrate probability and randomness live.
Frequently Asked Questions
How does an online dice roller work?
Each roll draws a cryptographically secure random number and maps it to a face of the die, so every result from 1 to the number of sides is equally likely. This roller supports d4, d6, d8, d10, d12, d20, and d100, up to 50 dice at once, plus a modifier added to the total.
What does notation like 2d6+3 mean?
It is standard tabletop dice notation: the first number is how many dice to roll, the letter d means "dice", the next number is the sides per die, and the +3 is a modifier added to the sum. So 2d6+3 means roll two six-sided dice and add 3 — a result between 5 and 15.
Is a virtual dice roller truly random?
This roller uses your browser's cryptographic random generator, which is far more uniform than a hand-thrown die and free of any physical bias or weighting. It is well suited to board games, Dungeons & Dragons, giveaways, and classroom demonstrations.