Dice probability calculator
Enter the dice, the sides and the target total, and the tool counts every outcome exactly. Useful for planning moves in board games.
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How to use it
- Enter number of dice, sides per die and target total.
- The result appears straight away and updates as you edit.
- Copy the result, or copy a link that keeps the same values to share it.
How it is calculated
The ways to reach each total are built die by die: ways(t after i dice) = sum of ways(t - f after i - 1 dice) for each face f from 1 to s. Probability = ways / s^n.
Example
Inputs: Number of dice = 2, Sides per die = d6 (6 sides), Target total = 7. Result: Chance of exactly this total: 16.6667%; Chance of this total or more: 58.3333%; Chance of this total or less: 58.3333%.
Limits and caveats
- It assumes fair dice where every face is equally likely.
- All dice share one side count and no modifier is applied.
Questions about this tool
What is the chance of 7 with two dice?
6 ways out of 36, or 16.67%, the highest of any total with two dice.
What is the chance of 12 with two dice?
Only one way (6 and 6) out of 36, about 2.78%.
Why are totals not equally likely?
Middle totals have more combinations than the extremes: 7 comes from 6 combinations but 2 from only one.