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
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.