Online Dice Roller
Roll virtual dice: 1–10 dice with 4, 6, 8, 10, 12 or 20 sides.
Tip: For D&D: use the standard combinations such as 2d6 (2 six-sided dice), 1d20 (1 twenty-sided die), or 4d6 drop lowest for character abilities.
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About this digital tool
The online dice roller rolls virtual dice, from 1 to 10 of them, with 4, 6, 8, 10, 12 or 20 sides. Choose the number of dice, the type and, if you need, a modifier (+ or −), then press Roll and see each die, the total and the roll history.
Each roll uses the browser's cryptographic random number generator, so every face has the same chance. The total is the sum of the dice plus the modifier. The tool is useful for board games such as Monopoly and Ludo, for role-playing games such as D&D (1d20, 2d6, 4d6), for teaching probability and for any time you don't have physical dice at hand.
How to use
- Choose the number of dice (1–10)
- Choose the number of faces (4, 6, 8, 10, 12, 20)
- Add an optional modifier (+/-)
- Click 'Roll' or press Space
- See the result and the roll history
Frequently asked questions
Are digital dice truly random?
Yes, we use a CSPRNG (Crypto.getRandomValues) — the same standard as cryptography. Every face has an equal probability. No pattern or prediction possible.
Which games need a 20-sided die?
Dungeons & Dragons (D20 for every action), Pathfinder, and many tabletop RPGs. The D20 determines whether your attack/skill succeeds.
Can I simulate specific rolls?
Yes: choose the number of dice, the number of faces, add modifiers (+/-), and choose the rule (keep highest, drop lowest, multiply). E.g., 4d6 drop lowest = the standard D&D roll.
Are digital dice really fair?
Yes, the tool uses the browser's random number generator and every face has an equal chance. There is no hidden sequence and rolls don't depend on previous rolls.
What does the notation 2d6 or 1d20 mean?
The number before the d is how many dice you roll and the number after the d is how many faces each has. 2d6 is two six-sided dice, 1d20 is one twenty-sided die.
How do I use the modifier in a roll?
Enter a signed number, e.g. +3 or −2, and it is added to the sum of the dice. It is common in role-playing games for bonuses and penalties.