1 in 40 means 1 successful outcome for every 40 chances.
Equivalent percentage
2.50%
2.50%
How rare is that?
This means the outcome happens, on average, once every 40 tries. Smaller percentages mean rarer events.
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Frequently asked questions
What does 1 in 40 mean?
It means there are 1 successful outcomes in every 40 chances.
What percentage is 1 in 40?
1 in 40 is equal to 2.5%.
Does a smaller percentage mean a rarer event?
Yes. The smaller the percentage, the less often the event is expected to happen.