Number Base Converter

Free online number base converter. Convert between decimal, binary, hexadecimal, and octal instantly. Perfect for programmers and students.

How to Use

How to Use the Base Converter

Step 1: Enter Number

Type a number in any supported base.

Step 2: View All Bases

All four bases update instantly as you type.

Step 3: Copy

Click any value to copy it to your clipboard.

Key Features

  • Decimal/Binary/Hex/Octal
  • Real-time conversion
  • Large number support
  • One-click copy
  • Mobile friendly
  • 100% free

Common Uses

  • Computer science education
  • Programming tasks
  • Digital electronics
  • Network addressing

FAQ

Q: What bases are supported?
A: Decimal (10), Binary (2), Hexadecimal (16), and Octal (8).

Q: How accurate is the conversion?
A: The conversion is exact up to JavaScript's integer precision (safe up to 2^53).

Q: Can I convert from any base?
A: Yes, you can enter a number in any base and all others update automatically.