To check the number of calories you need eat daily, go to
http://www.projectweightloss.com. You can enter your target weight, and the web site calculates how many calories you should eat every day to reach that weight. The site is free, you just need to sign up as a member.. They also have a diet and workout planner that shows you how many calories you burn when you exercise, and how many you eat with your meals. That`s how you can find out if you exercise enough. You can also use their weight charts and see whether you`re under/over the daily calorie limit. Good luck!