Dice Roller

Roll virtual polyhedral dice including D4, D6, D8, D10, D12, D20, and D100 with custom modifiers and statistical roll tracking.

Summary:A virtual dice roller simulates rolling tabletop and gaming dice using pseudo-random number generation, computing sum totals, modifier additions, and historical dice statistics for role-playing games.

Settings

Select Dice Type
2
Roll History (Last 10)
No rolls yet — roll some dice to get started.

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How to Use Dice Roller

Our Dice Roller is a free web utility designed to simplify random rolls. To use this online tool: 1. Choose your dice type (D4 through D100, or Custom). 2. Select the quantity of dice to roll (1 to 50). 3. Input an optional modifier to add or subtract from your total. 4. Click the 'Roll Dice' button to trigger the spin animation. 5. View your total sum, average, min/max values, and review previous rolls in the history panel below.

Dice Roller Formula / How It Works

Clicking Roll calls the browser's cryptographic random number API (crypto.getRandomValues) to yield unbiased integer results between 1 and the specified number of sides for each die.

Formula:Total = Σ(Rolls) + Modifier; Average = Σ(Individual Rolls) / Number of Dice
Example Calculation:

For example, rolling 3d6 with a modifier of +2 will roll three separate six-sided dice (e.g. rolling 4, 3, and 5) and add 2, resulting in a total sum of 14.

Frequently Asked Questions

This dice roller supports standard tabletop RPG dice: d4, d6, d8, d10, d12, and d20. You can roll multiple dice at once (e.g., 3d6) and see both individual results and the total sum.

Yes. It uses the browser's built-in cryptographically secure random number generator (crypto.getRandomValues) or Math.random, providing results that are statistically indistinguishable from physical dice rolls for casual use.

Yes. The dice set (d4, d6, d8, d10, d12, d20) covers all standard Dungeons & Dragons and Pathfinder dice. Roll ability scores (4d6), attack rolls (1d20), or damage (various dice types) directly in your browser.

Yes. Select the number of dice and the die type, and the roller simulates all dice simultaneously, showing each individual result and the combined total — useful for rolls like 2d6+3 in RPG combat.

No. All rolls are generated in your browser and not logged, stored, or transmitted anywhere. Each roll is independent and private.

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