While working with arrays, we often need to calculate the average of an array in VBA. In this article, I’ll show you how you can calculate the average of an array in VBA with proper examples and illustrations.

VBA Code to Calculate the Average of an Array (Quick View)

```
Sub Average_of_Array()
Dim MyArray() As Variant
MyArray = Array(11, 34, 79, 77, 21, 40, 136, 99, 81)
Dim Sum As Variant
Sum = 0
For i = LBound(MyArray) To UBound(MyArray)
Sum = Sum + MyArray(i)
Next i
Dim Average As Variant
Average = Sum / (UBound(MyArray) + 1)
MsgBox "The Average of the Array is: " + Str(Average)
End Sub
```

**Download Practice Workbook**

Download this practice workbook to exercise while you are reading this article.

**VBA Code to Calculate the Average of an Array (Step-by-Step Procedure)**

Here we have an array consisting of the numbers **11, 34, 79, 77, 21, 40, 136, 99,** and **81**.

Let’s see how we can calculate the average of the array step by step.

**⧪ Step 1: Declaring the Array**

To calculate the average of the array, first, we’ve to declare the array.

```
Dim MyArray() As Variant
MyArray = Array(11, 34, 79, 77, 21, 40, 136, 99, 81)
```

**⧪ Step 2: Adding All the Elements**

Then we’ve to find out the sum of all the elements of the array. We’ll accomplish this by iterating through a **for-loop** using the **LBound function** and the **UBound function** of **VBA**.

```
Dim Sum As Variant
Sum = 0
For i = LBound(MyArray) To UBound(MyArray)
Sum = Sum + MyArray(i)
Next i
```

**⧪ Step 3: Calculating the Average**

Finally, we’ve to divide the sum by the total number of elements of the array. We’ll use the **UBound function** of **VBA** for this purpose.

```
Dim Average As Variant
Average = Sum / (UBound(MyArray) + 1)
```

**⧪ Step 4 (Optional): Displaying the Average**

In the end, you can add a Message Box to display the average.

`MsgBox "The Average of the Array is: " + Str(Average)`

So the complete **VBA **code will be:

**⧭ VBA Code:**

```
Sub Average_of_Array()
Dim MyArray() As Variant
MyArray = Array(11, 34, 79, 77, 21, 40, 136, 99, 81)
Dim Sum As Variant
Sum = 0
For i = LBound(MyArray) To UBound(MyArray)
Sum = Sum + MyArray(i)
Next i
Dim Average As Variant
Average = Sum / (UBound(MyArray) + 1)
MsgBox "The Average of the Array is: " + Str(Average)
End Sub
```

**⧭ Output:**

Run this code. And it’ll show the average of the given array, that is, **64.22**.

**Read More:** **How to Calculate Average in Excel (Including All Criteria)**

**3 Examples Involving the Average of an Array with VBA (Macro, UDF, and UserForm)**

We’ve seen how we can calculate the average of an array in **VBA**. Now, let’s see some examples involving the average of an array.

**Example 1: Developing a Macro to Calculate the Average of a User-Input Array with VBA**

Let’s develop a **Macro** to calculate the average of a user-input array with **VBA**.

First, we’ll use an **InputBox** asking the user to input the array.

By default, **VBA **will grant the input as a string. To convert it to an array, we’ve to use the **Split function** of **VBA**.

Then we’ll use the mentioned code to calculate the average of the array and show it in a **Message Box**.

So, the complete **VBA** code will be:

**⧭ VBA Code:**

```
Sub Average_of_User_Input_Array()
MyArray = InputBox("Enter the Array: ")
MyArray = Split(MyArray, ",")
Dim Sum As Variant
Sum = 0
For i = LBound(MyArray) To UBound(MyArray)
Sum = Sum + MyArray(i)
Next i
Dim Average As Variant
Average = Sum / (UBound(MyArray) + 1)
MsgBox "The Average of the Array is: " + Str(Average)
End Sub
```

**⧭ Output:**

Run the code. First, it’ll ask the user to input the array. I’ve entered **11,23,45,67,79,77,99,34,78,15,23**.

Then click **OK**. It’ll display the output of the array in a **Message Box**. It is **50.09**.

**Read More:** **How to Calculate Average in Excel Excluding 0 (2 Methods)**

**Example 2: Creating a User-Defined Function to Calculate the Average of a Range of Cells with VBA**

Now, let’s create a user-defined function to calculate the average of a range of cells with **VBA**.

First, we’ll declare the function with a range of cells as the argument.

Then we’ll **convert the range to an array.**

After that, we’ll calculate the average of the array with the mentioned code.

Finally, we’ll set the average as the output of the function.

So, the complete **VBA** code will be:

**⧭ VBA Code:**

```
Function Range_Average(Rng As Range)
Dim MyArray() As Variant
MyArray = Application.Transpose(Rng)
Dim Sum As Variant
Sum = 0
For i = LBound(MyArray) To UBound(MyArray)
Sum = Sum + MyArray(i)
Next i
Dim Average As Variant
Average = Sum / (UBound(MyArray) + 1)
Range_Average = Average
End Function
```

**⧭ Output: **

Here we’ve got a data set with the names of some students and their marks in an examination. Below the marks, there is an empty cell that’ll contain the average of the marks.

Now. we’ll insert our **Range_Average** function in the empty cell.

Click **ENTER**. And it’ll contain the average of the marks. That is **61.54**.

**Related Content:** **How to Exclude a Cell in Excel AVERAGE Formula (4 Methods)**

**Similar Readings:**

**How to Calculate Percentage above Average in Excel (3 Easy Ways)****Excel VBA to Read CSV File into Array (4 Ideal Examples)****How to Calculate Centered Moving Average in Excel (2 Examples)****Running Average: How to Calculate Using Excel’s Average(…) Function****How to Name a Table Array in Excel (With Easy Steps)**

**Example 3: Developing a UserForm to Calculate the Average of an Array with VBA**

We’ve created a **Macro** to calculate the average of a user-input array.

Also, we’ve created a user-defined function to calculate the average of a range of cells.

Finally, we’ll develop a **VBA UserForm** to calculate the average of both a user-input array and a range of cells.

**⧪ Step 1: Opening the UserForm**

Press **ALT+F11** to open the **Visual Basic** editor in Excel. In the **Visual Basic** editor, go to **Insert > UserForm** to insert a new **UserForm**.

**⧪ Step 2: Dragging Tools from the Toolbox**

A **UserForm** called **UserForm1** will be opened in the editor. Along with the **UserForm**, you’ll get a **Toolbox** containing all the tools available for use in the **UserForm**.

Move your cursor over the **Toolbox** and drag a **ListBox** (**ListBox1**) to the top left corner of the **UserForm**.

Similarly, drag two **Labels** (**Label1** and **Label2**) to the right of the **ListBox** and two **TextBoxes **(**TextBox1** and **TextBox2**) to the right of the **Labels**.

Finally, drag a **CommandButton** (**CommandButton1**) to the bottom right corner of the **UserForm**.

Change the display of the **Labels** as **Range** and **Array** respectively.

Also, change the display of the **CommandButton** to **OK**.

**⧪ Step 3: Putting Code for ListBox1**

Double-click on the **ListBox1**. A private subprocedure called **ListBox1_Click** will open. Insert the following code there:

```
Private Sub ListBox1_Click()
If UserForm1.ListBox1.Selected(0) = True Then
UserForm1.Label1.Visible = True
UserForm1.TextBox1.Visible = True
UserForm1.Label2.Visible = False
UserForm1.TextBox2.Visible = False
ElseIf UserForm1.ListBox1.Selected(1) = True Then
UserForm1.Label2.Visible = True
UserForm1.TextBox2.Visible = True
UserForm1.Label1.Visible = False
UserForm1.TextBox1.Visible = False
Else
MsgBox "Select At Least One.", vbExclamation
End If
End Sub
```

**Read More:** **Excel VBA to Create Data Validation List from Array**

**⧪ Step 4: Inserting Code for TextBox1**

Similarly, double-click on **TextBox1**. Another private subprocedure called **TextBox1_Change** will open. Enter the following code there.

```
Private Sub TextBox1_Change()
On Error GoTo Message
Range(UserForm1.TextBox1.Text).Select
Message:
x = 6
End Sub
```

**⧪ Step 5: Entering Code for CommandButton1**

Then double-click on the **CommandButton1**. Another subprocedure called **CommandButton1_Click** will open. Enter the following code there.

```
Private Sub CommandButton1_Click()
If UserForm1.ListBox1.Selected(0) = True Then
Dim MyArray() As Variant
MyArray = Application.Transpose(Range(UserForm1.TextBox1.Text))
Dim Sum As Variant
Sum = 0
For i = LBound(MyArray) To UBound(MyArray)
Sum = Sum + MyArray(i)
Next i
Dim Average As Variant
Average = Sum / (UBound(MyArray) + 1)
MsgBox "The Average of the Array is: " + Str(Average)
ElseIf UserForm1.ListBox1.Selected(1) = True Then
MyArray2 = UserForm1.TextBox2.Text
MyArray2 = Split(MyArray2, ",")
Dim Sum2 As Variant
Sum2 = 0
For i = LBound(MyArray2) To UBound(MyArray2)
Sum2 = Sum2 + MyArray2(i)
Next i
Dim Average2 As Variant
Average2 = Sum2 / (UBound(MyArray2) + 1)
MsgBox "The Average of the Array is: " + Str(Average2)
Else
MsgBox "Select At Least One.", vbExclamation
End If
End Sub
```

**Read More:** **VBA to Transpose Array in Excel (3 Methods)**

**⧪ Step 6: Inserting Code for Running the UserForm**

Finally, go to the** Insert > Module **option in the **VBA** toolbar and enter a new module.

Enter the following code in the module.

```
Sub Run_UserForm()
UserForm1.Caption = "Average of Array"
UserForm1.TextBox1.Text = Selection.Address
UserForm1.Label1.Visible = False
UserForm1.Label2.Visible = False
UserForm1.TextBox1.Visible = False
UserForm1.TextBox2.Visible = False
UserForm1.ListBox1.BorderStyle = fmBorderStyleSingle
UserForm1.ListBox1.ListStyle = fmListStyleOption
UserForm1.ListBox1.AddItem "Range of Cells:"
UserForm1.ListBox1.AddItem "User-Input Array:"
Load UserForm1
UserForm1.Show
End Sub
```

**⧪ Step 7: Running the UserForm (The Final Output)**

Your **UserForm** is now ready to use. Select the range of cells from the worksheet whose average you want to calculate (**C4:C17**), then run the **Macro** called **Run_UserForm**.

A **UserForm** called **Average of Array** will be opened. It contains a **ListBox** with two options: **Range of Cells** and **User-Input Array.**

If you select **Range of Cells**, a **TextBox** will open asking you to enter the range whose average you want to calculate. By default, it’ll contain the address of the selected range. But you can change it if you want.

Then click **OK**. A message box will display the average of the input range, which is **61.54** here.

Similarly, if you select **User-Input Array** the **Range TextBox** will disappear and a new **TextBox **will appear asking you to enter the array. Enter the array there.

Here I’ve entered **11,21,79,67,87,157,131,66**.

Click **OK**. And a **message box** will display you the average of the array. That is **77.375**

**Things to Remember**

In **Example 2**, we created an Excel function that takes a range of cells as the input and returns the average as the output. But there’s already a built-in function in Excel called the **AVERAGE **function that does the same.

**Conclusion**

So, this is the way to calculate the average of an array with **VBA **in Excel. Hope you’ve gone through all the examples in detail and understood how the code works. Do you have any questions? Feel free to ask us. And don’t forget to visit our site **ExcelDemy** for more posts and updates.

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