# Excel formula for Beginners – How to Count cells that contain odd numbers in Excel # (Excel examples for Beginners)

In this end-to-end excel example, you will learn – How to Count cells that contain odd numbers in Excel.

### Generic formula

`=SUMPRODUCT(--(MOD(rng,2)=1))`

### Explanation

To count cells that contain only odd numbers, you can use a formula based on the SUMPRODUCT function together with the MOD function.

In the example, the formula in cell E6 is:

`=SUMPRODUCT(--(MOD(rng,2)=1))`

This formula returns 4 since there are 4 odd numbers in the range B6:B11 (which is named range, “rng” in the formula).

### How this formula works

The SUMPRODUCT function works directly with arrays.

One thing you can do quite easily with SUMPRODUCT is perform a test on an array using one or more criteria, then count the results.

In this case, we are running a test for an odd number, which uses the MOD function:

`MOD(rng,2)=1`

MOD returns a remainder after division. In this case, the divisor is 2, so MOD will return a remainder of 1 for any odd integer, and a remainder of zero for even numbers.

Inside SUMPRODUCT, this test is run on every cell in B6:B11, the result is an array of TRUE / FALSE values:

{FALSE;TRUE;TRUE;TRUE;FALSE;TRUE}

After we coerce the TRUE/FALSE values to numbers using the double negative, we have:

{0;1;1;1;0;1}

SUMPRODUCT then simply sums these numbers and returns 4.

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