What is GAMMA.INV function in Excel?
The GAMMA.INV function is one of the Statistical functions of Excel.
It returns the inverse of the gamma cumulative distribution:
If p = GAMMA.DIST(x,…), then GAMMA.INV(p,…) = x.
We can find this function in Statistical category of insert function Tab.
How to use GAMMA.INV function in excel
- Click on an empty cell (like F5).

2. Click on the fx icon (or press shift+F3).

3. In the insert function tab you will see all functions.
4. Select STATISTICAL category.
5. Select GAMMA.INV function.
6. Then select ok.

7. In the function arguments Tab you will see GAMMA.INV function.
8. Probability is the probability associated with the gamma distribution, a number between 0 and 1, inclusive.
9. Alpha is a parameter to the distribution, a positive number.
10. Beta is a parameter to the distribution, a positive number. If beta = 1, GAMMA.INV returns the inverse of the standard gamma distribution.
11. You will see the results in the formula result section.
Examples of GAMMA.INV function in Excel
GAMMA.INV related functions
- GAMMA function
- GAMMA.DIST function
- GAMMALN function
- GAMMALN.PRECISE function