# Random Dice Roller

Our random dice roller 🎲 can help you **pick a random number (or numbers) by rolling up to fifteen dice at once.**

If you're in need of a random dice generator, you've arrived at the right place. This tool can roll many dice at once, and you can customize each die to your needs.

Below, you'll find a short text covering the following:

- How to calculate dice probability;
- How to use our random dice roller; and
- Answers to questions such as:
*How many outcomes are possible with two dice?*and*Are dice rolls truly random?*

## How to use the random dice roller

This random dice generator is straightforward and intuitive. Here's the step-by-step on how to use it:

**Number of dice**: Select the number of dice.*You can choose up to 15 dice to be rolled at once!***Die type**: Depending on the previous step, you will get a separate option for each die. Here you can customize each of them individually or change them all at once by using the '**Set all die types to**' option.- Lastly, select the
**roll**option to roll your dice! You can keep selecting this option to roll**as many times as you want**. A list of your results will appear right below this field.

## How do I calculate dice probability?

To calculate the probability of rolling a number or any of multiple numbers, follow these steps:

- Count the
**number of desired outcomes (B)**. E.g., rolling any single number means only one possible outcome (if the numbers don't repeat). Rolling any of multiple numbers means as many desired outcomes as numbers. - Count the
**number of possible scenarios (A)**. This is the number of die faces. A six-sided die has six possible outcomes. - Lastly, the probability is:
`P = B/A`

.

## How many outcomes are possible with two dice?

**36** or **21**, depending if the dice are different or completely indistinguishable, respectively. When the dice are clearly distinct, each outcome has a 1/36 probability. However, when they are indistinguishable from one another, some outcomes merge, which might give them a greater probability than others.

## Other dice calculators

Feel free to check any of our other dice calculators:

- Dice roller;
- D20 dice roller;
- 2 dice roller;
- 6-sided dice roller;
- D100 dice roller;
- Custom dice roller;
- 4-sided dice roller;
- 10-sided dice roller; and
- DnD dice roller.

## FAQ

### Are dice rolls truly random?

**No, in the sense that given the same initial conditions, the die or dice will always return the same value(s).** However, since controlling every initial parameter is very challenging and slight changes in these conditions drastically alter the die's behavior, they are considered random.

### What's the probability of rolling a 5 on a dice?

**1/6**. The probability of rolling any single number on a six-sided die is **1/6**. On dice with a greater or lower number of faces, the probability changes with **1/n** where **n** is the number of sides.