What is a number base?

A number base (or radix) determines how many unique digits are used. Decimal uses 10 (0-9), binary uses 2 (0-1), hex uses 16 (0-F).

Number Base Converter

Convert numbers between any base — binary (base 2), octal (base 8), decimal (base 10), and hexadecimal (base 16). See all conversions at once as you type.

Frequently Asked Questions

What is a number base?: A number base (or radix) determines how many unique digits are used. Decimal uses 10 (0-9), binary uses 2 (0-1), hex uses 16 (0-F).

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