Here we will show you how to convert the binary number 11111 to decimal. First, note that the binary number system is a base-2 system which means it only has two numbers (0 and 1) instead of the decimal number system which has 10 numbers (0 through 9).

To convert the binary number 11111 to decimal (or any other binary number for that matter) you follow these steps:

Step 1) You start with the last digit in 11111: Multiply the last digit by 2^0, Multiply the second to last digit by 2^1, Multiply the third to the last digit by 2^2, Multiply the fourth to the last digit by 2^3, Multiply the fifth to the last digit 2^4, and so on until all the digits are used.

Step 2) Add up all the products you got from Step 1 to get the answer to 11111 in decimal.

Using the steps above, here is the math showing you how to convert 11111 binary to decimal. (Don't forget that we start with the last digit in 11111 on the right side and then work our way to the left.)

1 x 2

^{0}= 1

1 x 2

^{1}= 2

1 x 2

^{2}= 4

1 x 2

^{3}= 8

1 x 2

^{4}= 16

1 + 2 + 4 + 8 + 16 = 31

That is all there is to it. Here is the answer to 11111 binary to decimal:

**31**

Notes: 2^0 is the same as 2

^{0}which is the same as 1, and 2^1 is the same as 2. Furthermore, 2^2 is 2 x 2 = 4 and 2^3 is 2 x 2 x 2 = 8 and so on.

In the math above, we included all the calculations that equal 0, but that was simply for illustration. You can ignore them in your calculations, but remember that you do have keep track of them, because the position of each of the digits in 11111 determines how much to multiply each of them by.

**Binary to Decimal Converter**

Here you can convert another binary number to decimal. Remember, binary numbers contain only 0s and 1s.

**111110 binary to decimal**

Go here for the next binary number on our list that we have converted to decimal.

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