Number Base Converter
Convert Binary, Octal, Decimal, Hex
About Number Base Converter (Binary, Hex, Decimal)
1What is it?
Convert numbers instantly between custom bases. Supports Binary (2), Octal (8), Decimal (10), Hexadecimal (16), and any custom base up to 36. Essential for computer science students, embedded systems developers, and network engineers.
2Use Cases
- Convert memory addresses from Hex to Decimal for debugging
- Translate binary bitmasks to readable hex or decimal
- Work with CSS colors (Hex to RGB/Decimal)
- Solve subnetting and IP address masking problems
- Educate students on positional numeral systems
3Examples
Convert 255
Input
Decimal: 255
Output
Binary: 11111111 Hex: FF
?Frequently Asked Questions
What is the largest number I can convert?
We support arbitrary-precision integers (BigInt), so you can convert numbers with hundreds of digits without losing precision, far exceeding standard calculator limits.
How do custom bases work?
For bases > 10, we use letters A-Z to represent digits 10-35. For example, in Base 16 (Hex), 'F' equals 15.