Base-N Converter
Convert a number between any bases from 2 to 36.
Any base to any base
Numbers can be written in any base — binary, hex, or something unusual like base 36 — and converting between them by hand is tedious and error-prone. This tool does it for any base from 2 to 36.
The hex value FF converts to 11111111 in binary and 255 in decimal. Enter your number, its current base, and the base you want, and the tool also lists the standard binary, octal, decimal, and hex forms.
Versatile and private
It parses and re-encodes the number in your browser, so nothing you enter is uploaded.
Frequently Asked Questions
Which bases are supported?
Any base from 2 to 36. Digits above 9 use the letters A through Z, so base 16 uses 0-9 and A-F.
Is it case-sensitive?
No. Letter digits can be entered in upper or lower case.
Does it show common bases?
Yes. Alongside your chosen output base, it lists the binary, octal, decimal, and hexadecimal forms.
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