Side-by-Side Compare

Compare: Probability Calculator

Enter different values in each scenario to compare results in real time. State is fully isolated between the two columns.

Scenario A

Baseline

Probability from counts, odds or a percentage; complement; repeated trials

Try an example

I know the

Favorable outcomes

Total outcomes

Repeat for n independent trials (optional)

Target chance of at least one success (optional)

Leave the optional fields empty if you only want the single-event result. Trials are assumed independent.

Fill in the fields above, or pick an example, to see the answer with its working.

Scenario B

Alternative