Random Dice Roller

Q: 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.

Q: 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.

Creators

Luciano Miño

A physics student, self-taught web developer, and data scientist, Luciano is extremely curious and passionate about problem-solving and programming. He’s always eager to learn new things that allow him to get a deeper understanding of the problem at hand and produce the most simple yet complex answer to any given situation, making calculator-building his natural habit. His experience teaching Math and Physics to high school and college students allows him to write clear and understandable texts that approach the reader in a friendly manner. In his free time, he enjoys weightlifting, meditation, and tackling new programming projects. See full profile

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Reviewers

Komal Rafay

Komal has a master's in Bioinformatics, with 3+ years of experience as a project manager. She has a vast experience of 7+ years in teaching Math, Computer science, and General Sciences, not only professionally but also helping out local children. Komal is an enthusiastic reader with a thirst for knowledge. As a side hustle that satisfies her love for art, she is a body art and henna expert. In her free time, you will find her reading books, writing short stories, playing with her pets, or experimenting with food while listening to some bouncy music. See full profile

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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 to select the dice type for each dice. Here, you can set them all to the same dice type by selecting your desired dice type, or you can customize each of them individually after selecting the last dropdown option of the "Set all dice types to" selection.
Lastly, tick the roll checkbox to roll your dice! You can keep ticking and unticking this checkbox 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:

FAQs

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.