Another good site that few people on here have used is Calorieking.com.au (make sure you add the 'au' - there is also an American site which is NOT free - but the aussie site is
Doesnt cost anything but your time, but there is options to input your stats (weight, height age and so on) and level of activity and it'll tell you how many calories you need to eat to lose weight each week. There is also a food database where you can see the calories of food - so it takes awhile but you can calculate how much is in your current diet and where changes need to be made.
You must be very fit, and im sure your actually very healthy with that amount of exercise, but the main point is your definitely eating too much. To lose weight you'll need to create a deficit, which means either eating LESS overall, or eating different foods (ie, less calorie dense stuff). To lose 1 kg you need to create a 7000 cal deficit. (Thats basic terms anyway - one thing ive learnt over the years that losing weight is a LOT MORE than just maths - the more you look in to it the more complicated it gets!).
If you arent one to look at the nitty gritty, and just want some basic advise, really its just about eating more fruit, veg, healthy meat sources (if your not vegetarian) and eating less refined carbs (bread, pasta) and sugar.