Number Base Converter
Convert numbers between binary, octal, decimal and hexadecimal instantly. Free and in-browser.
Value
Decimal2550xff
Convert
Binary
Octal
Decimal
Hexadecimal
Edit any field — the others update live. BigInt-backed, so arbitrarily large integers are safe. Examples: 11111111, 377, 255, ff.
Frequently asked questions
Which bases are supported?+
Binary (2), octal (8), decimal (10) and hexadecimal (16).