๐ช Streak Probability Calculator
Assumes each trial is independent โ earlier results don't affect later ones.
Enter the probability of a single outcome (as a percentage โ 50 for a fair coin flip, about 16.7 for a specific die face) and the number of times in a row you want it to occur, to calculate the probability of that streak happening.
How to use
- Enter the probability of a single outcome, as a percentage (50 for a fair coin).
- Enter how many times in a row you want it to occur.
- The probability of that streak, and roughly "1 in how many" it represents, are calculated automatically.
FAQ
What calculation does this do?
Assuming each trial is independent (earlier results don't affect later ones), the probability of N results in a row at per-trial probability p is simply p raised to the Nth power (p^N).
Can I use this for rolling the same die face three times in a row?
Yes โ enter about 16.67 (= 1/6 ร 100) as the per-trial probability and 3 as the streak length to get the probability of that specific face coming up three times in a row.
Is this for "heads then tails" patterns, or just "the same result every time"?
This tool calculates the probability of the same outcome occurring every time in a row (e.g. heads every time). It doesn't handle probabilities for a specific alternating or mixed sequence.