Binary to Hexadecimal Calculator
Convert a base-2 (binary) number to base-16 hexadecimal notation.
About the Binary to Hexadecimal Calculator
Binary (base-2) uses only the digits 0 and 1 and is how computers represent data internally, while hexadecimal (base-16) uses 0-9 and A-F. Because 16 is a power of 2 (24), each hexadecimal digit maps cleanly onto exactly four binary digits, making hex a compact, human-readable stand-in for long binary strings.
Formula: Convert binary → decimal by summing each bit times its power of 2, then convert that decimal value to base 16.
For example, the binary number 11111111 equals decimal 255, which converts to hexadecimal FF — the maximum value a single byte can hold. Grouping the binary digits into nibbles (1111 1111 = F F) gives the same answer directly.
Widely used by programmers and computer science students for reading memory addresses, color codes, MAC addresses and debugging output where hexadecimal is far easier to read than raw binary.