Games

Dice Roller

Roll two six-sided dice instantly or choose common tabletop presets from d4 to d100. Custom mode supports up to 100 dice with as many as 1,000 sides each.

This original fan tool is not affiliated with or endorsed by any game publisher.

successful runs
upvotes
comments

Dice rolls happen in your browser using secure random values. No account, game history, or roll list is uploaded for processing.

How to Use the Dice Roller

  1. Keep the default 2d6 or choose a common dice preset.
  2. Select Roll dice.
  3. Read the total and each individual roll.
  4. Choose Custom when you need a different number of dice or sides.

How the Dice Roller Works

For every die, the roller requests a cryptographically secure random value from the browser and maps it to an integer from 1 through the selected number of sides. Dice are generated independently, then added to produce the total.

Understanding Dice Notation

Dice notation uses NdS, where N is the number of dice and S is the number of sides. For example, 2d6 means two six-sided dice, 1d20 means one twenty-sided die, and 4d8 means four eight-sided dice.

2d6 Example and Probability

Two six-sided dice can total from 2 to 12. A total of 7 is the most common because six combinations produce it. Totals of 2 and 12 each have only one combination. The roller shows individual dice so you can verify the total.

Common Uses for an Online Dice Roller

Use the presets for tabletop games, classroom probability exercises, turn order, or any casual situation that needs virtual dice. Follow the rules of the game or activity when modifiers, rerolls, advantage, or special dice mechanics apply.

Community discussion

Comments

Share feedback about the tool. Don’t include private calculation inputs or account details.

0
Loading discussion…

Method, sources, and review

Built and maintained by
TheToolSite AutomationAutomation
Method reviewed by
Derrick Frye
Last reviewed
August 19, 2026
Publisher
TheToolSite

Methodology

Generates each die independently with the browser cryptographic random-number generator and rejection sampling over the requested integer side count, then sums the rolls.

Assumptions

Limitations

The result is not externally auditable or reproducible and is not suitable for regulated gambling, lotteries, or cryptographic key generation.

Rounding and precision

Each die and the total are integers; no rounding is performed after unbiased range mapping.

Sources

Report a problem with this result or source

Dice Roller FAQ

What does 2d6 mean?

2d6 means roll two six-sided dice and add their values. The possible total is 2 through 12.

Can I roll a d20 or d100?

Yes. The preset menu includes d20 and d100 options, along with d4, d6, d8, d10, and d12.

How random is the online dice roller?

Each die uses the browser cryptographic random-number generator and is generated independently. Short runs can still contain repeats or streaks because those are normal random outcomes.

How many custom dice can I roll?

Custom mode accepts from 1 to 100 dice, with 2 to 1,000 sides per die.

Related Random Tools