My fitness pal says I need 1270 calories a day to lose 2 lbs a week. Calorie Count says 1400. Fitbit says 1600.......
It's very easy to get confused. There are different methods of calculating it.
I started out on my fitness pal's paltry 1200, but lately I try to keep it between 1200 and 1500. Despite the advice of you have to eat so many a day, I see no logic in stuffing myself when I'm full. I do not go below 1000.
Your daily total is based on how active you are as well. I have a desk job and sit on my butt all day. My calories are based off that. I do walk for at least 20 minutes a day now, lately more than that, and that earns me some extra calories if I want to eat them. Most of the time, I don't.
You can use this to see your daily goal if you want:
http://scoobysworkshop.com/calorie-calculator/
Everyone is different. Just don't go too low
Some great tracking sites are those mentioned; myfitnesspal, calorie count, fitday, and lose it. They are free and easy to use, and have apps for your smart phone if you have one.