Introductory probability — not Bayesian inference.
Probability Calculator
Calculate simple probabilities from favorable and total outcomes.
Independent events A and B.
P(A and B)0.120000
P(A or B)0.580000
nCr
120
C(n, r) = n! / (r!(n−r)!)
Steps
- Enter favorable and total
- Optionally combine events
- Read probability
Related
FAQ
Are results official?
No—quick estimates only.
Is data saved?
No. Calculations run in your browser.