Calories are not the only things you have to watch if you want to lose weight. The amount of fat also contributes. Too many people obsess with calories, that they don't realise that all they have to do is moderate the food that they eat. For example, if you would normally have a chocolate bar every day, try cutting that down to one a week or one every couple of days to start with. This will cut out some of the calories you consume. If you try and have smaller portions of food, you will lose weight.
So really it doesn't matter about the calories as long as you don't overeat at meal times and you exercise regularly, you will lose weight.