Hi there!
I know that as followers of SB, it is not really required/necessary to strictly adhere to these guidelines or to count calories, but especially if you are just starting out, it might be helpful to have a clear picture of what you're consuming each day. The Discovery Health Channel has a very helpful site with many tools to help you figure these things out. They have a food log which calculates your caloric intake, as well as protein, carbs, fats, sugar and fiber of your meals. It's pretty easy to use. The tools are free for the first month, then I guess you have to pay for it, but if you want to just try it out you don't need to give them any credit card info or anything. The website address is:
http://in2nutrition.com/discovery2/
Hope this helps and best of luck to you!