Free Number Base Converter — Binary, Octal, Decimal, Hex
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About This Tool
The Number Base Converter allows you to instantly translate values between binary, octal, decimal, and hexadecimal systems — essential for developers, students, and engineers working across different data representations. It simplifies complex math and ensures accuracy in your technical calculations. This tool is free, private, and runs entirely in your browser with zero registration.
How to Use
- 1
Type your number into the input field in any supported base — binary, octal, decimal, or hex.
- 2
All other base representations update instantly below.
- 3
Copy any converted value for use in your technical project or study materials.
Frequently Asked Questions
What bases does this converter support?
It supports base 2 (binary), base 8 (octal), base 10 (decimal), and base 16 (hexadecimal).
Can I convert negative numbers between bases?
The tool converts unsigned positive integers between bases accurately. Negative numbers require two's complement representation for binary.
Is this number base converter free?
Yes. Completely free with no account required.
What bases can I convert between?
You can convert between binary (Base 2), octal (Base 8), decimal (Base 10), and hexadecimal (Base 16) easily and accurately.