Measurements within your "Inch"

Recently I was in the fabric store and I overheard a lady getting some fabric ask the worker exactly how much was 7/8.? 

So, I thought that this would be a nice little recap tutorial. I know that when I started sewing, I had to really brush up on my measurements! After a while, everything came back to me though.

Here are your measurements within your inch.

I hope it comes in handy. :)