How this decimal to hexadecimal converter works
This tool converts a decimal (base-10) whole number into its hexadecimal (base-16) equivalent, the number system programmers commonly use to represent memory addresses, colors, and byte values.
The conversion repeatedly divides the decimal number by 16 and records each remainder as a hex digit, using 0-9 for values ten and below and A-F for values 10 through 15, then reads the digits from last remainder to first. The calculator also shows the equivalent binary and octal values.
Negative numbers are treated as zero. This tool is intended for general learning and reference purposes.
Last reviewed August 2026