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Binary to decimal is actually very simple.

Here is a "Base 10" (Decimal) number 7.

Binary is logically laid out in groups of 4 like:

0000 0000 0000 0111

It is read Right to Left and each 0/1 has a "Place Value". Starting at the right and moving left you have (1,2,4,8) (16,32,64,128) (256,512,1024,2048) (4096,8192,16384,32768).

Now, every where that there is a ONE you take its "Place Value" and add all of them up.

So, in our example we have 0111

i.e. (1 + 2 + 4 = 7)

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14y ago

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