Binary / Hex / Octal Converter

Convert values between binary, octal, decimal, and hexadecimal bases.

Input value

From base

To base

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Switching between number bases correctly

Last updated: March 30, 2026

A binary / hex / octal converter is essential for students and developers working with low-level values, memory representations, and debugging output.

Different bases serve different needs: binary for machine logic, hexadecimal for compact byte representation, and octal in specific system contexts.

Fast base conversion prevents common manual mistakes and improves confidence in technical workflows.

Frequently asked questions

Why do developers use different number bases?

Binary maps to machine representation, hex is compact for bytes, and octal appears in permission and low-level contexts.

Can I enter prefixes like 0x or 0b?

Yes. Common prefixes are accepted when matching the selected source base.

Is manual base conversion error-prone?

Yes. Calculator conversion is faster and reduces mistakes in debugging and study tasks.