Convert numbers between binary, octal, decimal, hexadecimal and any base from 2 to 36, with two's complement for negatives.
755.#FF5A1F), memory addresses and bytes: two hex digits are exactly one byte.255 in decimal is 11111111 in binary (eight 1s, one full byte), 377 in octal and FF in hex.
Type the binary number in the Binary box and the decimal (and every other base) appears straight away. By hand: multiply each digit by 2 to the power of its position, counting from 0 on the right, and add them up. 1011 is 8 + 0 + 2 + 1 = 11.
As big as you like. The converter uses whole-number arithmetic with no size limit, so 64-bit, 128-bit and longer values convert exactly.
Yes. The prefixes 0x, 0b and 0o are understood, and spaces and underscores used to group digits are ignored.
The way computers store negative whole numbers. For a negative number, the converter also shows its two's complement in binary and hex at 8, 16, 32 or 64 bits.
