Single Event Probability Calculator

Understand the chance of an event occurring with this interactive probability tool.

Favorable Outcomes (Number of ways the event can occur)

Total Outcomes (Total possible outcomes)

Result

Probability (Fraction):

Probability (Decimal):

Probability Visualization

The colored bar visually represents the probability of the event.

Understanding Probability

Probability is a measure of the likelihood of an event occurring. It is quantified as a number between 0 and 1, where 0 indicates impossibility and 1 indicates certainty.

Formula: Probability (P) = Favorable Outcomes / Total Possible Outcomes

Favorable Outcomes: The number of outcomes that are in your favor or that you are interested in.

Total Possible Outcomes: The total number of possible results in a given situation.

Example: If you flip a fair coin, the probability of getting heads is 1/2 or 0.5, because there is one favorable outcome (heads) out of two total possible outcomes (heads and tails).