Number Base Converter
Binary, octal, decimal, hexRuns locally · nothing uploaded
- Binary (2)1111 1111
- Octal (8)377
- Decimal (10)255
- Hexadecimal (16)FF
- Base 3673
- Bit length8
Also works as:binary to decimaldecimal to binaryhex to decimaldecimal to hexoctal converter
How to use
- 1Enter a value.
- 2Choose its current base.
- 3Read and copy the other bases.
FAQ
How do I convert decimal to binary?
Repeatedly divide by 2 and read the remainders in reverse: 13 → 1101.
What do A–F mean in hex?
They stand for 10–15. FF = 15 × 16 + 15 = 255.
Can I paste 0x or 0b prefixes?
Yes. 0x, 0b and 0o prefixes are ignored automatically.