Probability Calculator
A free online tool to easily calculate the probability of single and multiple events.
Result
| No of possible event that occured | ||
|---|---|---|
| No of possible event that do not occured |
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Easily Calculate the Probability of Any Event
What are the chances of something happening? Our free Probability Calculator helps you determine the likelihood of single and multiple events with ease. Whether you're solving a homework problem, analyzing a game of chance, or making a data-driven decision, this tool will give you a clear and accurate answer.
How to Use the Probability Calculator
- Enter Number of Outcomes: Input the number of outcomes that you consider a success (the event you are measuring).
- Enter Total Possible Outcomes: Input the total number of possible outcomes that could occur.
- Click "Calculate": Our tool will instantly compute the probability.
Understanding Probability
Probability is the measure of how likely an event is to occur. The result is always a number between 0 and 1, where:
- 0 means the event is impossible.
- 1 means the event is certain.
For example, the probability of flipping a coin and getting "heads" is 1 out of 2 possible outcomes, or 0.5 (50%).
Example Calculation:
If you want to find the probability of rolling a "4" on a standard six-sided die:
- Number of desired outcomes = 1 (rolling a 4)
- Total possible outcomes = 6 (the numbers 1 through 6)
The probability is 1/6, or approximately 16.7%.