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Both calculators run independently — change the inputs on either side to compare results.

Conditional Probability Calculator

Apply Bayes' theorem to find conditional probabilities, intersections, and unions of two events. Useful in medical testing, risk analysis, and machine learning evaluation.

P(A) - Probability of Event A

P(B) - Probability of Event B

P(B|A) - Probability of B given A

Calculate

Fill in the required fields to see your result.

Probability

Dice Roll Probability Calculator

Compute the probability of rolling any target sum with any number of multi-sided dice. It counts the favorable combinations and divides by all equally likely outcomes, which is perfect for board-game and tabletop RPG design.

Number of Dice (dice)

Target Sum

Sides per Die (sides)

Fill in the required fields to see your result.

Key differences

	Conditional Probability Calculator	Dice Roll Probability Calculator
Category	Probability	Probability
Inputs required	4	3
Result	Probability	Probability
What it does	Apply Bayes' theorem to find conditional probabilities, intersections, and unions of two events. Useful in medical testing, risk analysis, and machine learning evaluation.	Compute the probability of rolling any target sum with any number of multi-sided dice. It counts the favorable combinations and divides by all equally likely outcomes, which is perfect for board-game and tabletop RPG design.