Converts a binary number to octal.
If this function is not available, and returns the #NAME? error, install and load the Analysis ToolPak addin.
How?
 On the Tools menu, click AddIns.
 In the AddIns available list, select the Analysis ToolPak box, and then click OK.
 If necessary, follow the instructions in the setup program.
Syntax
BIN2OCT(number,places)
Number is the binary number you want to convert. Number cannot contain more than 10 characters (10 bits). The most significant bit of number is the sign bit. The remaining 9 bits are magnitude bits. Negative numbers are represented using two'scomplement notation.
Places is the number of characters to use. If places is omitted, BIN2OCT uses the minimum number of characters necessary. Places is useful for padding the return value with leading 0s (zeros).
Remarks
 If number is not a valid binary number, or if number contains more than 10 characters (10 bits), BIN2OCT returns the #NUM! error value.
 If number is negative, BIN2OCT ignores places and returns a 10character octal number.
 If BIN2OCT requires more than places characters, it returns the #NUM! error value.
 If places is not an integer, it is truncated.
 If places is nonnumeric, BIN2OCT returns the #VALUE! error value.
 If places is negative, BIN2OCT 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 Formulas tab, in the Formula Auditing group, click the Show Formulas button.

A 
B 
Formula 
Description (Result) 
=BIN2OCT(1001, 3) 
Converts binary 1001 to octal with 3 characters (011) 
=BIN2OCT(1100100) 
Converts binary 1100100 to octal (144) 
=BIN2OCT(1111111111) 
Converts binary 1111111111 to octal (7777777777) 
