About this tool
The Number Base Converter instantly translates a number between the four number systems developers use most: binary (base 2), octal (base 8), decimal (base 10) and hexadecimal (base 16). Type a value in any one field and the others update live. It is a daily helper for programming, working with colors, permissions, memory addresses and low-level data.
How to use
- 1Type a number in any base field.
- 2The other bases convert instantly.
- 3Copy the value you need.
Benefits
- Binary, octal, decimal and hex.
- Live two-way conversion.
- Great for coding and color work.
Frequently asked questions
What is hexadecimal used for?+
Hex is common for color codes (#RRGGBB), memory addresses and representing bytes compactly.
Why binary?+
Computers store everything as binary (0s and 1s); base conversion helps you read and debug that data.