Converters

Number Base Converter

Convert between binary, octal, decimal, and hexadecimal.

Part of Yoopla's 445+ free browser tools.

Valid chars: 0-9

Number Base Systems:

Binary (Base 2): Uses digits 0-1. Common in computing for representing machine code and digital circuits.
Octal (Base 8): Uses digits 0-7. Used in file permissions (Unix/Linux) and some older computer systems.
Decimal (Base 10): Uses digits 0-9. The standard number system used by humans.
Hexadecimal (Base 16): Uses 0-9 and A-F. Common for colors, memory addresses, and compact binary representation.

Example: The number 255 in different bases:

Binary: 11111111
Octal: 377
Decimal: 255
Hexadecimal: FF

How to Use Number Base Converter

  1. 1

    Enter number.

  2. 2

    Select base.

  3. 3

    Convert.

Frequently Asked Questions

What are number bases?

Different ways to represent numbers: binary (2), octal (8), decimal (10), hex (16).

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Number Base Converter | Yoopla