VBA CDbl Function in Excel

VBA CDbl Function in Excel is categorizes as a Data Type Conversion function. It is a built-in function in Excel VBA. This VBA CDbl function converts an expression to a Double data type.

This function use in either procedure or function in a VBA editor window in Excel. We can use this VBA CDbl Function in any number of times in any number of procedures or functions. In the following section you learn many topics. Like what is the syntax and parameters of the CDbl function, where we can use this VBA CDbl Function and it’s real-time examples.

Table of Contents:

Overview
Syntax of VBA CDbl Function
Parameters or Arguments
Where we can apply or use VBA CDbl Function?
Example 1: Convert a String(10000.12345) to Double Data Type
Example 2: Convert a Value(54321.12345) to Double Data Type
Example 3: Convert a Value(1000.12345) to Double Data Type
Example 4: Convert a Value(12345.12345) to Double Data Type
Example 5: Convert a string(Test) to Double Data Type
Instructions to Run VBA Macro Code
Other Useful Resources

Syntax of VBA CDbl Function in Excel:

The syntax of the CDbl Function in VBA is

CDbl(Expression)

The CDbl function returns a double data type value.

Parameters or Arguments:

The CDbl function has one argument in Excel VBA.
where Expression: It is a mandatory argument. An expression argument represents a numeric or string value. It Converts the numeric or string value to a double value.

Where we can apply or use VBA CDbl Function?

We can use this CDbl Function in VBA MS Office 365, MS Excel 2016, MS Excel 2013, 2011, Excel 2010, Excel 2007, Excel 2003, Excel 2016 for Mac, Excel 2011 for Mac, Excel Online, Excel for iPhone, Excel for iPad, Excel for Android tablets and Excel for Android Mobiles.

Example 1: Convert a String(10000.12345) to Double Data Type

Here is a simple example of the VBA CDbl function. This below example converts an expression(10000.12345) to Double Date type.

'Convert a String(10000.12345) to Double Data Type
Sub VBA_CDbl_Function_Ex1()

    'Variable declaration
    Dim sValue As String
    Dim dResult As Double
    
    sValue = 10000.12345
        
    dResult = CDbl(sValue)
        
    MsgBox "String(10000.12345) to Double Data Type : " & dResult, vbInformation, "VBA CDbl Function"
    
End Sub

Output: Here is the screen shot of the first example output.

Example 2: Convert a Value(54321.12345) to Double Data Type

Here is a simple example of the VBA CDbl function. This below example converts an expression(54321.12345) to Double Date type.

'Convert a Value(54321.12345) to Double Data Type
Sub VBA_CDbl_Function_Ex2()

    'Variable declaration
    Dim sValue
    Dim dResult As Double
    
    sValue = 54321.12345
        
    dResult = CDbl(sValue)
        
    MsgBox "Value(54321.12345) to Double Data Type : " & dResult, vbInformation, "VBA CDbl Function"
    
End Sub

Output: Here is the screen shot of the second example output.

Example 3: Convert a Value(1000.12345) to Double Data Type

Here is a simple example of the VBA CDbl function. This below example converts an expression(1000.12345) to Double Date type.

'Convert a Value(1000.12345) to Double Data Type
Sub VBA_CDbl_Function_Ex5()

    'Variable declaration
    Dim sValue As Long
    Dim dResult As Double
    
    sValue = 1000.12345
        
    dResult = CDbl(sValue)
        
    MsgBox "Value(1000.12345) to Double Data Type : " & dResult, vbInformation, "VBA CDbl Function"
End Sub

Output: Here is the screen shot of the third example output.

Example 4: Convert a Value(12345.12345) to Double Data Type

Here is a simple example of the VBA CDbl function. This below example converts an expression(12345.12345) to Double Date type. It returns an error as Overflow. Because the result is exceed the double maximum value.

'Convert a Value(12345.12345) to Double Data Type
Sub VBA_CDbl_Function_Ex3()

    'Variable declaration
    Dim sValue As Integer
    Dim dResult As Double
    
    sValue = 12345.12345
        
    dResult = CDbl(sValue * sValue)
        
    MsgBox "Value(12345.12345) to Double Data Type : " & dResult, vbInformation, "VBA CDbl Function"
    
End Sub

Output: Here is the screen shot of the fourth example output.

Example 5: Convert a String(Test) to Double Data Type

Here is a simple example of the VBA CDbl function. This below example converts an expression(Test) to Double Date type. It returns an error as Type mismatch. Because the specific string can’t convert to double data type.

'Convert a string(Test) to Double Data Type
Sub VBA_CDbl_Function_Ex4()

    'Variable declaration
    Dim sValue As String
    Dim dResult As Double
    
    sValue = "Test"
        
    dResult = CDbl(sValue)
        
    MsgBox "String(Test) to Double Data Type : " & dResult, vbInformation, "VBA CDbl Function"
    
End Sub

Output: Here is the screen shot of the fifth example output.