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  3. Number Base Converter

Number Base Converter

Convert between binary, octal, decimal, and hexadecimal

Binary
0b1111 1111
Octal
0o377
Decimal
255
Hexadecimal
0xFF

Quick Examples

Related Tools

  • Hash Generator - work with hexadecimal hashes
  • Color Converter - convert hex color values
  • Unix Timestamp - convert timestamp values
  • UUID Generator - understand UUID hex format

How to Use Number Base Converter

  1. Enter a number

    Type a number in decimal, binary, hexadecimal, or octal format.

  2. Select the input base

    Choose which base your input number is in (2, 8, 10, or 16).

  3. View all conversions

    See your number converted to binary, octal, decimal, and hexadecimal.

Frequently Asked Questions

Is the Number Base Converter free?
Yes, the Number Base Converter is completely free with no limitations. Convert between binary, octal, decimal, and hexadecimal as often as you need without registration.
Is my data private?
Yes, all conversions happen locally in your browser using JavaScript. No numbers or data are sent to any server.
What number bases are supported?
The tool supports binary (base 2), octal (base 8), decimal (base 10), and hexadecimal (base 16). These are the most common bases used in programming and computer science.
When would I need to convert number bases?
Number base conversion is common when working with memory addresses, color codes, file permissions, network addresses, and low-level programming. Hex is often used to represent binary data more compactly.