Roll virtual dice with support for multiple dice, custom sides (d4-d100), modifiers, and roll history.
Dice Roller produces random face values for one or more virtual dice, with side counts from d4 through d100. Select the quantity and number of sides, add an optional modifier, and roll; the tool totals the faces and records previous outcomes in its roll history. The modifier applies to the combined subtotal, not to each die. This distinction often explains totals that fall outside the unmodified minimum or maximum for the selected dice.
Set the number of dice, choose a side count from d4 through d100, and provide a modifier if needed. For n dice with s sides, the roller produces n face values from 1 through s. Their subtotal ranges from n through n x s. Adding modifier m shifts the possible final range to n + m through n x s + m.
Rolling again creates a new random outcome for the selected configuration, so matching settings do not imply matching totals. Roll history records earlier outcomes for comparison during the current activity. It is not a probability summary: a short sequence can contain repeated faces, omit many possible faces, or appear uneven without demonstrating that later rolls will compensate.
With n dice and s sides, the unmodified subtotal can only run from n to n x s. The modifier is then added to that subtotal, so a positive modifier can push the final total above n x s and a negative one can push it below n. That does not mean any individual die rolled an impossible face.
No such assurance follows from an ordinary browser dice result. The roller is suitable for games, quick simulations, and informal decisions, but its output should not be assumed to satisfy cryptographic, gambling, regulatory, or audit requirements. For a consequential drawing, use a method whose random source, procedure, and recordkeeping have been independently validated for that purpose.
The behavioral notes were checked against the browser implementation. Standards and primary references below define the relevant format, formula, or platform behavior.
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