Welcome to the calories burned calculator, the tool that simplifies the process of how to calculate calories burned, making you smarter in the process. Based on the activity type and duration, it estimates how many calories you have burned. Then, it can tell you how much weight you can expect to lose given the calories burned walking, for example. On top of that, in this calorie calculator, we talk about lost calories per day, how to burn more calories with fitness, and explore the health benefits of exercising, such as the prevention of heart disease.