VBA Hex-to-Dec

[Jaymond Flurrie]

This should be easy for anyone who has ever used hex numbers.

So, I use Hex$(334) and get as a result 14E. How do I convert that 14E to 334? I tried to look for function "dec$", but clearly it's something else. What?

[Makrini]

HEX2DEC
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Converts a hexadecimal number to decimal.

If this function is not available, and returns the #NAME? error, install and load the Analysis ToolPak add-in.

How?

On the Tools menu, click Add-Ins.
In the Add-Ins available list, select the Analysis ToolPak box, and then click OK.
If necessary, follow the instructions in the setup program.
Syntax

HEX2DEC(number)

Number is the hexadecimal number you want to convert. Number cannot contain more than 10 characters (40 bits). The most significant bit of number is the sign bit. The remaining 39 bits are magnitude bits. Negative numbers are represented using two's-complement notation.

Remark

If number is not a valid hexadecimal number, HEX2DEC returns the #NUM! error value.

Example

The example may be easier to understand if you copy it to a blank worksheet.

How to copy an example

Create a blank workbook or worksheet.
Select the example in the Help topic.
Note Do not select the row or column headers.



Selecting an example from Help

Press CTRL+C.
In the worksheet, select cell A1, and press CTRL+V.
To switch between viewing the results and viewing the formulas that return the results, press CTRL+` (grave accent), or on the Tools menu, point to Formula Auditing, and then click Formula Auditing Mode.

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A B
Formula Description (Result)
=HEX2DEC("A5") Converts hexadecimal A5 to decimal (165)
=HEX2DEC("FFFFFFFF5B") Converts hexadecimal FFFFFFFF5B to decimal (-165)
=HEX2DEC("3DA408B9") Converts hexadecimal 3DA408B9 to decimal (1034160313)

[Makrini]

Oops sorry - I missed the part where you said VBA

&H10

will return 16 (Simply prefix with &)

[Jaymond Flurrie]

Originally Posted by Makrini

HEX2DEC
Show All
Hide All
Converts a hexadecimal number to decimal.

If this function is not available, and returns the #NAME? error, install and load the Analysis ToolPak add-in.

How?

On the Tools menu, click Add-Ins.
In the Add-Ins available list, select the Analysis ToolPak box, and then click OK.
If necessary, follow the instructions in the setup program.
Syntax

HEX2DEC(number)

Number is the hexadecimal number you want to convert. Number cannot contain more than 10 characters (40 bits). The most significant bit of number is the sign bit. The remaining 39 bits are magnitude bits. Negative numbers are represented using two's-complement notation.

Remark

If number is not a valid hexadecimal number, HEX2DEC returns the #NUM! error value.

Example

The example may be easier to understand if you copy it to a blank worksheet.

How to copy an example

Create a blank workbook or worksheet.
Select the example in the Help topic.
Note Do not select the row or column headers.



Selecting an example from Help

Press CTRL+C.
In the worksheet, select cell A1, and press CTRL+V.
To switch between viewing the results and viewing the formulas that return the results, press CTRL+` (grave accent), or on the Tools menu, point to Formula Auditing, and then click Formula Auditing Mode.

1
2
3
4
A B
Formula Description (Result)
=HEX2DEC("A5") Converts hexadecimal A5 to decimal (165)
=HEX2DEC("FFFFFFFF5B") Converts hexadecimal FFFFFFFF5B to decimal (-165)
=HEX2DEC("3DA408B9") Converts hexadecimal 3DA408B9 to decimal (1034160313)

Yes, I was aware of this, but it seems to have nothing to do with VBA. Thank you for the answer anyway!

[Jaymond Flurrie]

Originally Posted by Makrini

Oops sorry - I missed the part where you said VBA

&H10

will return 16 (Simply prefix with &)

Does it work with variables too? I have a number in Mid$(strCrypted, l, 4), which returns a four digit hexadecimal number (well, a string of four numbers , but shouldn't matter), which I try to turn into a normal number, so that I can pass it to ChrW(), so that it will return a character.

One option would be, of course, to use a worksheet function, but I thought that there has to be some very simple function, like that Hex$() is.

[Makrini]

CLng("&H" & Range("A1").Value)

[Jaymond Flurrie]

Originally Posted by Makrini

CLng("&H" & Range("A1").Value)

Works great! Exactly that kind of solution I was looking for. Thank you!