Dice Roller - Roll Dice Online
Dice Roller
Roll one or more virtual dice with any number of sides.
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How It Works
This virtual dice roller provides a random number based on the number of dice and sides you select. It simulates a physical dice roll using a pseudorandom number generator.
Randomness
The randomness comes from your browser's built-in `Math.random()` function, which generates a floating-point number between 0 (inclusive) and 1 (exclusive). We then scale this number to fit the range of sides on your die and round it to get a final, random integer.
Logic & Formulas
For each die that is rolled, the calculator performs the following steps:
- Generate Random Number: It calls JavaScript's
Math.random(), which returns a number like `0.123...` or `0.987...`. - Scale to Range: This random number is multiplied by the number of sides on the die. For a 6-sided die, this results in a number from `0` up to (but not including) `6`.
- Floor and Add One: We use
Math.floor()to get the integer part (e.g., `5.99` becomes `5`). We then add 1 to shift the range from `0-5` to `1-6`.
Final Roll = Math.floor(Math.random() * Number of Sides) + 1
This process is repeated for each die, and the results are summed to get the total.