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Probability Calculator

Calculate probability, odds, complement, combinations, and permutations

Probability
0.3
Probability (%) (%)
30
Odds
3:7
Complement (1 - P)
0.7
Result
3

Frequently Asked Questions

What is the difference between combinations and permutations?

Combinations count selections where order does not matter (choosing 3 from 10). Permutations count arrangements where order matters (ranking 3 from 10). Permutations are always greater than or equal to combinations.

What is a complement in probability?

The complement of an event is the probability that the event does not occur. If the probability of rain is 0.3, the complement (no rain) is 1 - 0.3 = 0.7.

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