Calories burned calculators are tools that estimate the amount of calories you burn during physical activities, based on factors such as your weight, height, age, gender, and the type and intensity of the activity. They can be found online or as apps on mobile devices and fitness trackers.

These calculators typically work by using a formula that takes into account the metabolic equivalent (MET) of the activity you are doing, which is a measure of the energy required to perform the activity. The calculator then uses your personal information to estimate how many calories you burn based on the MET value of the activity.

Calories burned calculators can be useful for people who want to track their physical activity and monitor their progress towards weight loss or fitness goals. However, it's important to keep in mind that these calculators are only estimates, and the actual number of calories burned can vary depending on individual factors such as fitness level, body composition, and metabolism.