VBA Double Article byJeevan A Y Excel VBA Double Data Type

VBA Double is a kind of data type we assign to declare variables, which is an improved or longer version of the “Single” data type variable and is usually used to store longer decimal places.

data type always converts decimal values to the nearest integer value. The single data type can show up to two digits of decimal places. On the other hand “Double” data type can store values from -1.79769313486231E308 to -4.94065645841247E324 for negative values and for positive numbers it can store values from 4.94065645841247E-324 to 1.79769313486232E308.

More importantly, it consumes 8 bytes of memory.

For eg:
Source: VBA Double (wallstreetmojo.com)

Examples to use VBA Double Data Type

You can download this VBA Double Excel Template here – VBA Double Excel Template

Example #1

Before we see the example of the “Double” data type, let’s look at the example codes of “Integer” and “Single” data type in VBA. Look at the below .

Code:

Sub Integer_Ex()

Dim k As Integer

k = 2.569999947164

MsgBox k

End Sub

I have declared the variable “k” as Integer, and for this variable, I have assigned the value as 2.569999947164.

The result is showing as 3 instead of the supplied number of 2.569999947164. The reason because is VBA has converted the number to the nearest integer value i.e., 3.

When the decimal value is more than 0.5, then it will convert to the next integer value, and when the decimal value is less than 0.51, then it will convert to below integer value.

Now I will change the data type from Integer to Single.

Code:

Sub Integer_Ex()

Dim k As Single

k = 2.569999947164

MsgBox k

End Sub

Run the code through shortcut key F5, and see what number we get this time around.

This time we got the result as 2.57, so this time we got two decimal places. The original value we have assigned was 2.569999947164, so in this case, third, the placed decimal value is 9, so since this is more than 5, it has converted the second place decimal value 6 to 7.

Now change the data type from Single to Double.

Code:

Sub Integer_Ex()

Dim k As Double

k = 2.569999947164

MsgBox k

End Sub

Now run the code manually and see how many digits we get in the message box result.

This time got all the decimal values. We can supply up to 14 digits of decimal places under Double data type.

Suppose you supply any value greater than 14 decimal positions will be converted to the nearest value. For example, look at the below image.

I have typed 15 decimal places instead of 14. If I hit the enter key, it will be back to 14 digits only.

Instead of 59 (last two digits), we got 6 i.e., since the last digit is 9, which is greater than 5 previous number 5 is converted to the next integer value i.e., 6

Example #2

Now I will show in a worksheet. Below are the numbers I have entered in the worksheet.

Let us initiate capturing the same values to next by using INTEGER data type, SINGLE data type, and DOUBLE type.

Below is the code to retain values from column A to B by using the INTEGER data type.

Code:

Sub Double_Ex()

Dim k As Integer
Dim CellValue As Integer

For k = 1 To 6
CellValue = Cells(k, 1).Value
Cells(k, 2).Value = CellValue
Next k

End Sub

Let’s run the code through shortcut key F5 to see what values we get in column B.

When we have used Integer as data type, we got all the whole numbers i.e., without decimals.

Code:

Sub Double_Ex()

Dim k As Integer
Dim CellValue As Single

For k = 1 To 6
CellValue = Cells(k, 1).Value
Cells(k, 2).Value = CellValue
Next k

End Sub

This code will give the below result.

This time we got only two decimal places.

Now changes the data type from single to double.

Code:

Sub Double_Ex()

Dim k As Integer
Dim CellValue As Double

For k = 1 To 6
CellValue = Cells(k, 1).Value
Cells(k, 2).Value = CellValue
Next k

End Sub

This will return the below result.

We have got exact values from column A.

Things to Remember

• Double is an improved data type of Single data type.
• It can hold up to 14 decimal places.
• It consumes 8 bytes of system memory.

Recommended Articles

This has been a guide to VBA Double. Here we discuss how to use and declare VBA double data type to store longer decimal places along with practical examples and a downloadable excel template. Below you can find some useful excel VBA articles –

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