Probability Calculator

Calculate the probability of an event using favorable and total outcomes.

Probability: —

Probability = Favorable outcomes ÷ Total outcomes

Example

Rolling a die:
Favorable outcomes: 1 (rolling a 6)
Total outcomes: 6

Probability = 1 ÷ 6 ≈ 0.167 (16.7%)

What does this calculator do?

This calculator computes the probability of an event occurring based on the number of favorable outcomes divided by the total number of possible outcomes.

Why calculate probability?

Probability is fundamental in statistics, data analysis, finance, science, and decision-making under uncertainty.

Frequently Asked Questions

Can probability be greater than 1?

No. Probability values range from 0 (impossible) to 1 (certain).

What if favorable outcomes exceed total outcomes?

That situation is invalid. Favorable outcomes must be less than or equal to total outcomes.

Is the result rounded?

Yes. Results are rounded to three decimal places and shown as a percentage.