I choose a calorie range that made me full. It was 10x 150. I figure once reaching 150 I can either maintain that range, or if I have less appitite lower it. I more let my daily intake decide my calorie range. I also look at how much I burn just existing at this weight, which is about 2,000, so I try hard not to go over that. Some days I do though so as long as carb count is down, great