Number Base Converter

Convert numbers between binary, octal, decimal and hexadecimal.

Number:

From base:

How to use

Enter a number, pick its base, and see all bases at once.

How do I convert binary to hex?

Group bits in fours — or just use this tool, it does all four bases at once.

What is 255 in hex?

FF. In binary it is 11111111.

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