Base Two to Base Ten: Unsigned Base Two Binary Number 111 Converted and Written as a Base Ten Natural Number (Positive Integer, Without Sign), in Decimal System

Unsigned base two binary number 111(2) converted and written as a base ten number

1. Map the unsigned binary number's digits versus the corresponding powers of 2 that their place value represent.

  • 22

    1

  • 21

    1

  • 20

    1

2. Multiply each bit by its corresponding power of 2 and add all the terms up.

111(2) =

(1 × 22 + 1 × 21 + 1 × 20)(10) =

(4 + 2 + 1)(10) =

7(10)

The number 111(2) converted from an unsigned binary (in base 2) and written as a positive integer (with no sign) in decimal system (in base ten):
111(2) = 7(10)

Spaces were used to group digits: for binary, by 4, for decimal, by 3.

» More ops: The unsigned base two binary number 1000 converted and written as a base ten positive integer, with no sign, in decimal system

» New: All the Calculations Performed by Our Visitors: Unsigned base two binary numbers converted and written as base ten decimal system numbers (natural numbers, positive integers). Data organized on a Monthly Basis

How to convert unsigned binary numbers from binary system to decimal? Simply convert from base two to base ten.

To understand how to convert a number from base two to base ten, the easiest way is to do it through an example - convert the number from base two, 101 0011(2), to base ten:

  • Write bellow the binary number 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 corresponding power of 2 by exactly one unit each time we move to the left:
  • powers of 2: 6 5 4 3 2 1 0
    digits: 1 0 1 0 0 1 1
  • 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:

    101 0011(2) =

    (1 × 26 + 0 × 25 + 1 × 24 + 0 × 23 + 0 × 22 + 1 × 21 + 1 × 20)(10) =

    (64 + 0 + 16 + 0 + 0 + 2 + 1)(10) =

    (64 + 16 + 2 + 1)(10) =

    83(10)

  • Binary unsigned number (base 2), 101 0011(2) = 83(10), unsigned positive integer in base 10