Probability & Dice Calculator

Dice/coin probability plus nCr and nPr.

Result

P(sum = 7) on 2d616.667%
Ways6 of 36

Probability & Dice Calculator — FAQs

nCr vs nPr?

Combinations ignore order (10C2 = 45); permutations count order (10P2 = 90).

Probability rules?

P(A and B) = P(A)×P(B) if independent; P(A or B) = P(A)+P(B) if mutually exclusive. Dice odds are independent per roll.

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