# Converter of signed binary two's complement: converting to decimal system (base ten) integer numbers

## Latest binary numbers in two's complement representation converted to signed integers in decimal system (base ten)

 0011 0000 0011 1001 = 12,345 Apr 04 18:46 UTC (GMT) 1111 1111 0100 0011 1001 1110 1011 0001 = -12,345,679 Apr 04 18:45 UTC (GMT) 0000 0010 0000 0000 = 512 Apr 04 18:41 UTC (GMT) 0001 0100 0111 1010 1110 0001 0100 0111 = 343,597,383 Apr 04 18:40 UTC (GMT) 0000 1101 1110 0100 = 3,556 Apr 04 18:39 UTC (GMT) 0100 0000 1000 0010 0111 0110 1100 1001 = 1,082,291,913 Apr 04 18:38 UTC (GMT) 0000 0001 0000 1100 = 268 Apr 04 18:38 UTC (GMT) 0100 1010 1000 0000 0000 0000 0000 0000 = 1,249,902,592 Apr 04 18:38 UTC (GMT) 0100 0000 1000 0010 0111 0110 1100 1001 = 1,082,291,913 Apr 04 18:37 UTC (GMT) 0100 0010 1011 0100 = 17,076 Apr 04 18:37 UTC (GMT) 0000 0000 0000 0000 0000 0111 1111 1111 = 2,047 Apr 04 18:37 UTC (GMT) 11 = -1 Apr 04 18:34 UTC (GMT) 1100 0101 = -59 Apr 04 18:33 UTC (GMT) All the converted signed binary two's complement numbers

## How to convert signed binary numbers in two's complement representation from binary system to decimal

### To understand how to convert a signed binary number in two's complement representation from the binary system to decimal (base ten), the easiest way is to do it by an example - convert binary, 1101 1110, to base ten:

• In a signed binary two's complement, first bit (leftmost) indicates the sign, 1 = negative, 0 = positive. The first bit is 1, so our number is negative.
• Get the signed binary representation in one's complement, subtract 1 from the initial number:
1101 1110 - 1 = 1101 1101
• Get the binary representation of the positive number, flip all the bits in the signed binary one's complement representation (reversing the digits) - replace the bits set on 1 with 0s and the bits on 0 with 1s:
!(1101 1101) = 0010 0010
• Write bellow the positive binary number representation in base two, and above each bit that makes up the binary number write the corresponding power of 2 (numeral base) that its place value represents, starting with zero, from the right of the number (rightmost bit), walking to the left of the number, increasing each corresonding power of 2 by exactly one unit:
•  powers of 2: 7 6 5 4 3 2 1 0 digits: 0 0 1 0 0 0 1 0
• Build the representation of the positive number in base 10, by taking each digit of the binary number, multiplying it by the corresponding power of 2 and then adding all the terms up: