The Excel Bin2Hex function converts a Binary (Base 2) number into a Hexadecimal (Base 16) number.
Syntax: BIN2HEX(number, [places])
The BIN2HEX function syntax has the following arguments:
 Number Required. 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 Optional. The number of characters to use. If places is omitted, BIN2HEX uses the minimum number of characters necessary. Places is useful for padding the return value with leading 0s (zeros).
Example: Let’s look at some Excel BIN2HEX function examples and explore how to use the BIN2HEX function as a worksheet function in Microsoft Excel:
Syntax: =BIN2HEX(A2)
Result:
Based on the Excel spreadsheet above, the following BIN2HEX examples would return:
Syntax: =BIN2HEX(A3)
Result: E
Syntax: =BIN2HEX(A4)
Result: 64
Syntax: =BIN2HEX(A5)
Result: FFFFFFFFFF
Syntax: =BIN2HEX(A6)
Result: 2
Syntax: =BIN2HEX(A7)
Result: 1D
Syntax: =BIN2HEX(A8)
Result: 64
Syntax: =BIN2HEX(A9)
Result: #NUM!
Syntax: =BIN2HEX(A10)
Result: #NUM!
Syntax: =BIN2HEX(A11,B11)
Result: 00FB
Syntax: =BIN2HEX(A12,B12)
Result: 065
Syntax: =BIN2HEX(A13,B13)
Result: 0FF
Syntax: =BIN2HEX(A14,B14)
Result: FFFFFFFFFF
Syntax: =BIN2HEX(A15,B15)
Result: #NUM!
Note:
 If number is not a valid binary number, or if number contains more than 10 characters (10 bits), BIN2HEX returns the #NUM! error value.
 If number is negative, BIN2HEX ignores places and returns a 10character hexadecimal number.
 If BIN2HEX requires more than places characters, it returns the #NUM! error value.
 If places is not an integer, it is truncated.
 If places is nonnumeric, BIN2HEX returns the #VALUE! error value.

If places is negative, BIN2HEX returns the #NUM! error value.