Here you’ll find a list, by no means exhaustive, of links that you may find useful.
Keep in mind, they are developed for the “general public”, and are just guidelines. They are not specific to you. For accurate measurements, or real advice, consult your physician or dietician.
Weight-Gain Calculator (For bulking)
Glycemic Index (Everything you’ve wanted to know about the GI Scale)
Macro Nutrient Calculator (It may look a little daunting at first, but give it a shot when meal planning)
I will be adding more links from time to time. Check back here often.