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# CDbl Function

Converts any numerical expression or string expression to a double type.

## Syntax

    CDbl (Expression)

## Return value

قوش

## پارامېتىر

Expression: Any string or numeric expression that you want to convert. To convert a string expression, the number must be entered as normal text ("123.5") using the default number format of your operating system.

## Error codes:

D'oh! You found a bug (text/sbasic/shared/00000003.xhp#err5 not found).

## مىسال:

    Sub ExampleCountryConvert

        MsgBox CDbl(1234.5678)

        MsgBox CInt(1234.5678)

        MsgBox CLng(1234.5678)

    End Sub