Dice Roller
Set how many dice and what sides, then hit Roll — the dice actually tumble before landing on your result.
How Dice Roller Works
This is a virtual dice roller for board games and tabletop RPGs: choose how many dice to roll and how many sides each one has, then hit Roll to get a genuinely random result for each die, plus the total. A d6 gets a real animated 3D cube that visibly tumbles to its landed face; other die types (d4, d8, d10, d12, d20) use a quick flickering-number animation before settling.
Formula & Method
Each die's result is generated independently with 1 + Math.floor(Math.random() × sides), giving every face an equal chance of landing -- a fair, uniform random roll, the same as a physical die. For a 6-sided die, the visual result is produced by rotating a 3D cube to the rotation that shows the correct face, with a few extra random full spins added first purely for the tumbling effect; the rotation never influences which number was actually rolled -- that's decided first, then animated. The displayed total is simply the sum of all the individual die results.
Worked Example
Rolling 2 six-sided dice (2d6) might land on 4 and 5 -- each result independently anywhere from 1 to 6 with equal probability -- giving a displayed total of 9. The result panel breaks down each die individually ("Die 1 (d6)", "Die 2 (d6)") alongside the combined total.
Frequently Asked Questions
- Is the roll actually random, or does the animation influence the outcome?
- The number is generated first using JavaScript's random number generator, before any animation starts -- the tumbling or flickering visual is purely cosmetic and always ends on the number that was already decided. It doesn't affect fairness.
- Why do d4, d8, d10, d12, and d20 look different from the d6?
- The d6 gets a true 3D cube that can show all six faces with pips, since a cube is simple to model and rotate in CSS. The other die sizes use a flat display that flickers through random numbers before landing on the result, since building accurate 3D models for shapes like a d20 would be considerably more complex for the same underlying random outcome.
- Can I roll different-sided dice together in one roll?
- Not in a single roll -- one roll applies the same number of sides to every die in the tray. To combine different dice (like a d20 plus two d6s for a tabletop game), roll each die type separately and add the totals yourself.
- How many dice can I roll at once?
- Up to 10 dice in a single roll, each with the same number of sides, selectable from d4 up to d20.