I have been eating between 1800-2000 calories a day for about a week now, my nutrionist gave me this calorie level. Im happy with it and Im slowly losing weight.
1200-1500 a day, when I'm being good, although I don't count calories strictly at all (eg. I count most vegetables as zero and often over-estimate how many calories something has) so it could be more or less than that. I've been looking at labels since I was 14 though, so I have a pretty good idea of what's in most foods.
I think if I had an active job I would have more, but I spend most of the day sat around, really only exercising when I go to the gym.
I vary from 1100-1300, and feel quite satisfied. I do not exercise vigorously (shoulder and knee injuries), but I do do moderate cardio, weight lifting, and dance.
I started at 1800 and continue to lose on that. I exercise pretty intensely 5-7 days a week and unless I'm at work I rarely slow down because I have 2 toddler boys.