Dice Roller
Roll dice
Results
| Rolls | — |
|---|---|
| Sum | — |
| Notation | — |
How to Use This Dice Roller
Nothing kills the momentum at a tabletop session faster than dice scattering under the couch or someone arguing that a roll was not fair. I have lost count of how many game nights started with a five-minute hunt for a missing d20. This virtual dice roller keeps everything in one place: pick how many dice you need, choose the die type, and read the individual results plus the total sum without digging through a dice bag.
To get started, set the number of dice (from 1 up to 20). Then pick a standard polyhedral die—d4, d6, d8, d10, d12, d20, or d100—or switch to Custom and enter any side count from 2 to 1,000. Press Roll and the results table shows every die face that came up, the combined sum, and standard notation like 3d6 so you can log the roll in your campaign notes or chat.
The tool runs entirely in your browser. Rolls use the built-in random number generator that ships with modern browsers. That is perfectly fine for D&D nights, board games, classroom probability demos, and quick yes-or-no decisions. It is not a certified random source for gambling, lotteries, or tournament play where audited fairness is required.
Most tabletop players reach for a d20 for attack rolls and saving throws, d6 for fireball damage, and d4 for daggers or healing potions. If you play Pathfinder, Call of Cthulhu, or indie systems with unusual dice pools, the custom sides field handles anything from a coin flip (2 sides) to percentile-style rolls without needing a separate app. Rolling multiple dice at once—say, 4d6 for character stats—saves time compared to shaking four physical dice and adding them by hand.
When you need a quick random number without dice notation, the Random Number Generator on RapidRatio may be a better fit. For date-based party planning or turn order tied to birthdays, pair this roller with the Age Calculator or Day Counter elsewhere in our other calculators collection.
Frequently Asked Questions
What does notation like 3d6 mean?
Standard tabletop notation lists the count first, then the letter d, then the number of sides. So 3d6 means roll three six-sided dice and add the results. Our tool displays this notation automatically so you can paste it into a virtual tabletop log or Discord chat.
Are online dice rolls truly random?
Browser-based rollers use pseudorandom algorithms seeded at page load. For casual RPG and board-game use, that is more than adequate. If you need cryptographically secure or legally audited randomness—for casino games, raffles, or high-stakes tournaments—use hardware or a service designed and tested for that purpose.
Can I roll more than one die type in a single click?
Each roll uses one die type at a time. To simulate something like 1d20 plus 2d6, roll twice—once with d20 and count set to 1, then again with d6 and count set to 2—and add the sums yourself. Most players find that faster than hunting through a mixed dice bag anyway.
What is a d100 used for?
A d100 generates a number from 1 to 100, which many systems use for percentile checks, random encounter tables, or loot charts. Some groups roll two d10s instead (one for tens, one for ones), but a single d100 click is quicker when you just need a percentage outcome.