Dice Roller
Simulate one or more dice with configurable side counts and show each roll, total, and expected average.
Dice Inputs
Use 4, 6, 8, 10, 12, or 20 for common tabletop dice, or enter another side count.
Results computed instantly — your data never leaves your device.
Dice Results
Real-TimeRolls
1, 6
Total
7
Dice
2 × d6
Expected average
7.00
How to Use the Dice Roller
- 1
Enter how many dice to simulate.
- 2
Set the number of sides on each die.
- 3
Roll the dice to generate one result per die.
- 4
Review the individual rolls, total, and expected average.
Formula & Mathematical Basis
Variable Key
nNumber of dice
sSides per die
uUniform pseudorandom unit value
📝 This is a digital simulation. It does not reproduce the physical bias or randomness of a real die.
Step-by-Step Examples
Simulate three six-sided dice
Scenario: Use three dice with six sides each.
- 1.Set number of dice to three.
- 2.Set sides to six.
- 3.Roll the simulation.
- 4.Add the three displayed face values.
Practical Use Cases
- Run a tabletop-game dice simulation.
- Demonstrate discrete uniform outcomes.
- Compare totals from different side counts.
Common Pitfalls
- Confusing the expected average with a guaranteed result.
- Using too few rolls to infer fairness.
- Treating a software simulation as cryptographic randomness.
Frequently Asked Questions
Can I simulate a d20?
Yes. Set the side count to 20.
Is every total equally likely?
No. Individual faces are uniform, but sums of multiple dice have different probabilities.
Is this suitable for security decisions?
No. It is a game and teaching simulation, not a cryptographic source.
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