Dice Probability

Chance the sum reaches target.

Input Parameters

Dice count

Sides

Target sum ≥

Calculation Summary

Probability27.78%

Mean7.0

Count36

175 available

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About this calculator

Probability that XdY dice reach a target sum, exact or normal-approximated.

Exact or approx?

Exact enumeration up to 2M outcomes, normal curve beyond.

2d6 ≥ 9?

10 of 36 outcomes — about 27.78%.

Mean?

Count × (sides + 1) ÷ 2.