Number Base Converter
Convert between any bases from 2 to 36.
Base 16
FF
Binary (2)
11111111
Octal (8)
377
Decimal (10)
255
Hex (16)
FF
ShowHide the working
- 1255 (base 10) = 255 in decimal = FF in base 16
Formula
convert through base 10How it works
Converts a number between any two bases from 2 to 36, showing the common bases alongside.
Example
255 in base 10 is FF in hexadecimal.
About the Number Base Converter
Convert between any bases from 2 to 36. It sits in the Developer section of NWS Calc, a free collection of calculators that run entirely in your browser. There is no signup, no paywall and no tracking — open the page, enter your numbers, get an answer.
Frequently asked questions
- Is the Number Base Converter free to use?
- Yes. Every calculator on NWS Calc is completely free, with no signup, no usage limits and no ads.
- Does my data leave my device?
- No. The Number Base Converter runs entirely in your browser using JavaScript. Nothing you type is uploaded, logged or stored on a server.
- Can I use the Number Base Converter on my phone?
- Yes. The page is fully responsive and works in any modern mobile or desktop browser — there is nothing to install.
- What else is in Developer?
- Bases, bitwise math, timestamps, data sizes and aspect ratios. You can browse the full Developer category for related calculators.