Convert 99 to 21 Odds to Probability

99 to 21 Odds means that there are 99 chances of one outcome and 21 chances of a different outcome.

We will call these different outcomes A and B. Thus, there are 99 A's and 21 B's in 99 to 21 Odds.

99 to 21 Odds can be written as a ratio of 99/21. Instead of a ratio, Probability shows the percent chance of the outcomes A and B.

The two formulas to convert Odds to Probabilities are as follows

(A/(A+B))*100 = A%
(B/(A+B))*100 = B%

When we plug the 99 to 21 Odds numbers into the formulas, we get:

(99/(99+21))*100 = 82.50%
(21/(99+21))*100 = 17.50%

Therefore, 99 to 21 Odds converts to the following Probabilities:

82.50% Probability of A

17.50% Probability of B

So instead of saying 99 to 21 Odds, you could say that there is a 82.50% Probability.

Odds To Probability Converter
Convert more Odds here.

Convert 99 to 22 Odds to Probability
Here is the next Odds on our list that we converted to Probability.