Before we proceed into the topic of the day, let’s **understand the terms**: __ Blank cells__ and

__.__

**Non-blank cells****Blank cells **are **empty cells** in an Excel spreadsheet. They **contain no parameter or data**.

**Non-blank cells**, on the other hand, **contain parameters**. They are not empty.

Having blank cells in a spreadsheet is not inevitable. Sometimes, blanks are left, due to incomplete information or they may be oversite. In any way, when you have lots of data to view, it is important to have a knowledge of the total blank cells in the rows/columns/data.

In this tutorial, **our focus** **is** on **how to count blank and non-blank cells using the COUNTBLANK and COUNTA Functions**.

*Get your computer/laptop, pen/pencil, and paper ready… Let us go!!!*

**COUNTBLANK Function**

The **COUNTBLANK function** is used to count blank cells in a specific range of cells. Examples of range of cells are:

**Cells in a row: A1: M1****Cells in a column: A1: A8****Cells in rows and columns: A1: M8**(Pictures above).

**COUNTBLANK** counts the number of cells within the range that do not contain any value and gives you the total number of this. (See the picture COUNTBLANK)

In the last picture, you can see that there is a **total of 13 cells** to be filled in the **range of A2:M2**

The COUNTBLANK Function was used in cell **N2** and the value **8** was gotten.

**Meaning: 8 cells are blank.**

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**The SYNTAX **of the** COUNTBLANK Function **is**:**

**=COUNTBLANK(range)**

Looking at the picture above,

The blue row reads: **=COUNTBLANK(A1: M1) **

The Green Column reads: **=COUNTBLANK(A1: A8)**

While the Sky-blue box reads: **=COUNTBLANK(A1: M8)**

*Time to kick off with a case study and see the COUNTBLANK Function at work.*

**Case Study**

Study the data above. It is a list of test scores of students in some subjects.

Count the number of blank cells in each row and column using the COUNTBLANK function.

**Solution**

**Solution**

**Step 1:**

Copy the above data into a new spreadsheet.

Take note of the Columns and Rows.

**Step 2:**

**Add a new column**, let us call it the ‘**Countblank**’ column, to the table. This column will house the number of blank cells to be determined.

Next, in cell **N2** type: ** =COUNTBLANK(A2: M2)**

Then **click the Enter Key**, ** watch what happens**:

In place of the formula, a number is seen, right?

** If this is 3, then you are a guru.** If not, check your data again, and then your formula.

**Well done.** *You just succeeded in counting the number of blank cells in the second row.*

Check out the pictures above.

**Step 3:**

Next **copy and paste** the **formula** into the entire column **N**.

**Hint: ****To copy**; select the cell to copy (N2) using keys **Ctrl + C**.

**Next**, select the cells you wish to paste the formula, (N3 to N9), and press **Ctrl + V**.

The pictures above illustrate these points.

Good Job!!!

Now let’s count the blank cells in the columns.

**Step 4:**

**Repeat the steps 2 and 3** as shown in Slide 6 and 7, this time you can name the new row ‘Blank’.

So type in A9: ‘**Blank’**

Next, in cell B9, type:

** =COUNTBLANK(B2: B8)**

**Click your Enter Key and see the ***Magic!!*

Now, **copy and paste** the formula from B9 in C9 to M9. (Check the picture above).

Bravo!You have successfully counted the blank cells in the column and rows on the data.

**Step 5: **

To count the blank cells in the overall data, in cell N9, type:

** =COUNTBLANK(A1: M8)**

This is equal to the total blank cells in the rows/columns and it is 22 for this data.

Up Next: The COUNTA Function.

**The COUNTA Function**

Said earlier, the **COUNTA Function counts the cells that are not empty**. This should mean subtracting the COUNTBLANK value from the original range should give you the COUNTA value. This is not always so because the **COUNTBLANK Function and COUNTA Function treats formulas.**

The **COUNTBLANK function includes formulas that return a blank value as blanks.** **COUNTA Function does not consider such cells as blank**.

The** SYNTAX **of the **COUNTA Function **is:

**=COUNTA(value 1, value 2, …)**

**Note:** **COUNTA Function counts the number of cells in a range that contain any kind of data, be it a text, a number, a space character or even an error.**

**The COUNTA Function:**

Said earlier, the **COUNTA Function counts the cells that are not empty**. This should mean subtracting the COUNTBLANK value from the original range should give you the COUNTA value. This is not always so because the **COUNTBLANK Function and COUNTA Function treats formulas.**

The **COUNTBLANK function includes formulas that return a blank value as blanks.** **COUNTA Function does not consider such cells as blank**.

The** SYNTAX **of the **COUNTA Function **is:

**=COUNTA(value 1, value 2, …)**

**Note:** **COUNTA Function counts the number of cells in a range that contain any kind of data, be it a text, a number, a space character or even an error.**

**Case Study**

Study the data above. Using the COUNTA Function,

- Count the number of non-blank cells in the data.
- Count the number of non-blank cells in E2: G3, and I3.

**Step A:** Copy the above data into a new spreadsheet.

**Step B:**

**Add a new column**, let’s call it the ‘**Count**’ column, to the table.

**Next**, in cell N2 type:

**=COUNTA(B2: M8)**

**Click the Enter Key and watch**** the **** MAGIC!** (Pictures above) You should get

**62**.

This answer the part (a) of the question.

**Step C:**

For part (b), in cell N3, type:

** =COUNTA(E2: G3, I3)**

**Next**, press the **Enter Key**, see what happens….

The number of non-blank cells is counted, this gives us a value of **5**.

*Did you get that?*

You are a genius!!!

*Congratulations!!!*

*You have successfully used the COUNTBLANK and COUNTA Functions to count the number of blank cells and non-blank cells respectively.*