Number Base Converter

Convert numbers between binary, octal, decimal, and hexadecimal instantly. Validate input, compare values across bases, and copy results quickly for programming, debugging, and learning workflows.

Base Conversion Controls

Enter a value in binary, octal, decimal, or hexadecimal. The other bases update instantly when the input is valid.

Active input: decimal

Binary

binary

Octal

octal

Decimal

decimal

Hexadecimal

hexadecimal

Status

Decimal value converted successfully

Signed decimal

42

Bit length

6

Prefixed hex

0x2A

Prefixed binary

0b101010

Included features

  • Convert between binary, octal, decimal, and hexadecimal.
  • Any valid input field can drive all synced outputs.
  • Validation for each base with instant feedback.
  • Grouped display formatting for easier reading.
  • Copy each converted value separately.
  • Signed decimal, bit length, and prefixed output helpers.

What can this number base converter do?

This tool converts values between binary, octal, decimal, and hexadecimal, validates base-specific input, and keeps every output synced so you can compare representations instantly.

Common use cases

Use it for bitwise work, memory values, debugging low-level code, networking, embedded systems, computer science learning, and quick conversion between number systems during development.