Dice Probability Calculator
Calculate probability distributions, averages, and target number odds for any dice combination.
Inputs
Results
Probability (≥ Target)
16.67%
Average Roll7
Minimum Result2
Maximum Result12
Standard Deviation2.42
Probability (< Target)83.33%
How to Use This Calculator
- Select the dice type (d4, d6, d8, d10, d12, d20) and the number of dice.
- Set any modifier added to the roll and a target number to beat.
- Enter whether you roll with advantage (highest of 2) or disadvantage (lowest of 2).
- Review the Probability of Success, Mean Roll, and Standard Deviation.
- Use the Probability Distribution chart to visualize likely outcomes before critical decisions.
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