Probability Calculator
Calculate the probability of events occurring or not occurring based on possible outcomes. Simply enter the values and click calculate to get instant results.
Please enter a positive number (at least 1)
Events occurred must be between 0 and total outcomes
Probability of event that occurs
0.33
Based on your inputs, there's a 33% chance of this event occurring.
Probability of event that does not occur
0.67
Based on your inputs, there's a 67% chance of this event not occurring.
Probability Formula:
P(Event) = Number of Events Occurred / Number of Possible Outcomes
P(Not Event) = 1 - P(Event)
P(Not Event) = 1 - P(Event)
Real-time Analysis
Get instant feedback as you type with our live updating counters. No need to click any buttons.
Fully Responsive
Works perfectly on all devices - desktop, tablet, and mobile phones. Your stats always at hand.
Privacy Focused
Your text never leaves your browser. All processing happens locally for maximum security.
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