Convert from/to decimal, hexadecimal, octal and binary. Decimal Base conversion Calculator. Here you can find the answer to questions like: Convert decimal number 1024 in binary or Decimal to binary conversion. (This step finds the 52 bits of x that are immediately after the “decimal point“ when x is represented as a binary numeral, with rounding after the 52 nd digit, and it adjusts the exponent if rounding at that position rounds x up to 2, which is out of interval where we want it.) Add 1023 to e.