How many calories per day per meal??

I was just wondering what the calorie intake for dinner should be? because ive been looking at this great site calorieking.com.au (there is also the american version withouth the au at the end), which has great recipes and has every takeaway food calories to help get right choices!! and says the calorie amount for the recipes but im not sure if its right?? Also how much calories should i eat per day once i get to eat solids??