1 in 31 means 1 successful outcome for every 31 chances.
Equivalent percentage
3.23%
3.23%
How rare is that?
This means the outcome happens, on average, once every 31 tries. Smaller percentages mean rarer events.
Probability calculator
Convert “1 in X” odds into a percentage.
1 in
Enter an odds value to convert it.
Frequently asked questions
What does 1 in 31 mean?
It means there are 1 successful outcomes in every 31 chances.
What percentage is 1 in 31?
1 in 31 is equal to 3.2258%.
Does a smaller percentage mean a rarer event?
Yes. The smaller the percentage, the less often the event is expected to happen.