Number Base Converter

Convert whole numbers between decimal, binary, octal, and hexadecimal.

Move a number between common bases with strict input validation.

Your inputs stay on your device

Convert number bases

live result

Number

FromTo

Result

Decimal value: 255

Conversions run locally and reject malformed input rather than guessing.

Context & Reference

For working with binary, decimal, octal, and hexadecimal integers.

converter guide

Parses the selected base and renders the value in another base.

Use this converter with your own values, then review the clearly labelled result and copy it when you need it elsewhere.

The converted text is paired with its decimal value.

Convert FF from hexadecimal to binary.

Only non-negative 32-bit whole numbers are accepted.

This converter runs locally in this browser. Only non-negative 32-bit whole numbers are accepted.

Useful next steps

Continue with a closely related task, calculation, conversion, or local text tool.

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