# DEC2HEX function: Description, Usage, Syntax, Examples and Explanation

## What is DEC2HEX function in Excel?

DEC2HEX function is one of Engineering functions in Microsoft Excel that converts a decimal number to hexadecimal.

## Syntax of DEC2HEX function

DEC2HEX(number, [places])

The DEC2HEX function syntax has the following arguments:

**Number:**The decimal integer you want to convert. If number is negative, places is ignored and DEC2HEX returns a 10-character (40-bit) hexadecimal number in which the most significant bit is the sign bit. The remaining 39 bits are magnitude bits. Negative numbers are represented using two’s-complement notation.**Places(Optional):**The number of characters to use. If places is omitted, DEC2HEX uses the minimum number of characters necessary. Places is useful for padding the return value with leading 0s (zeros).

## DEC2HEX formula explanation

- If Number is < -549,755,813,888 or if Number is > 549,755,813,887, DEC2HEX returns the #NUM! error value.
- If Number is non-numeric, DEC2HEX returns the #VALUE! error value.
- If the result of DEC2HEX requires more than the number of specified Places characters, it returns the #NUM! error value.

For example, DEC2HEX(64,1) returns the error value because the result (40) requires two characters. - If Places is not an integer, the value of Places is truncated.
- If Places is non-numeric, DEC2HEX returns the #VALUE! error value.
- If Places is negative, DEC2HEX returns the #NUM! error value.

## Example of DEC2HEX function

Steps to follow:

1. Open a new Excel worksheet.

2. Copy data in the following table below and paste it in cell A1

Note: For formulas to show results, select them, press F2 key on your keyboard and then press Enter.

You can adjust the column widths to see all the data, if need be.

Formula |
Description |
Result |

=DEC2HEX(100, 4) | Converts decimal value 100 to hexadecimal with 4 characters (“padded” with two leading zeros). | 0064 |

=DEC2HEX(-54) | Converts decimal value -54 to hexadecimal | FFFFFFFFCA |

=DEC2HEX(28) | Converts decimal value 28 to hexadecimal. | 1C |

=DEC2HEX(64,1) | Returns the #NUM! error value because the result (40) requires 2 character places. | #NUM! |