Number Base Converter

Convert numbers between decimal, hexadecimal, binary, and octal formats instantly. Perfect for programmers and students.

10 Decimal

To Hexadecimal
FF
To Binary
11111111
To Octal
377

16 Hexadecimal

To Decimal
255

2 Binary

To Decimal
255

8 Octal

To Decimal
255

Number Base Systems

Base 10

Decimal

Uses digits 0-9. Standard number system used in everyday life.

Base 16

Hexadecimal

Uses 0-9 and A-F. Common in programming and memory addresses.

Base 2

Binary

Uses only 0 and 1. Fundamental to computer systems.

Base 8

Octal

Uses digits 0-7. Used in Unix file permissions.