1 in 100 means 1 successful outcome for every 100 chances.
Equivalent percentage
1.00%
1.00%
How rare is that?
This means the outcome happens, on average, once every 100 tries. Smaller percentages mean rarer events.
Probability calculator
Convert “1 in X” odds into a percentage.
1 in
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Frequently asked questions
What does 1 in 100 mean?
It means there are 1 successful outcomes in every 100 chances.
What percentage is 1 in 100?
1 in 100 is equal to 1%.
Does a smaller percentage mean a rarer event?
Yes. The smaller the percentage, the less often the event is expected to happen.