# Calories Burned Calculator > Calculate calories burned for any physical activity based on weight, activity type, and duration **Category:** Health **URL:** https://complete.tools/calories-burned-calc ## How it calculates The formula used by the Calories Burned Calculator is: Calories Burned = MET × weight (kg) × duration (hours). In this formula, MET represents the metabolic equivalent of the activity, which is a standardized value indicating the energy cost of a specific exercise. Weight is the user's body weight in kilograms, and duration is the time spent performing the activity in hours. This relationship shows that the calories burned are directly proportional to both the MET value of the activity and the user's weight, as well as the time spent engaging in the activity. For example, an activity with a higher MET value indicates a higher calorie expenditure rate for the same duration and weight. ## Who should use this 1. Fitness trainers calculating caloric burn for clients during specific workouts. 2. Nutritionists advising clients on calorie deficits for weight loss based on activity levels. 3. Athletes assessing energy expenditure during training sessions for performance optimization. 4. Physical therapists monitoring activity levels of patients recovering from injuries. 5. Recreational walkers or joggers evaluating calorie burn to track fitness goals. ## Worked examples Example 1: A 70 kg individual runs at a speed of 8 km/h (MET = 8) for 1 hour. The calculation would be: Calories Burned = 8 × 70 kg × 1 hour = 560 calories. This means the individual expends approximately 560 calories during this run. Example 2: A 60 kg person does yoga (MET = 3) for 1.5 hours. The calculation would be: Calories Burned = 3 × 60 kg × 1.5 hours = 270 calories. Therefore, the individual burns around 270 calories during this yoga session. These examples illustrate how different activities and weights affect total caloric burn. ## Limitations The calculator assumes that MET values are accurate representations of energy expenditure for a given activity, which may not always hold true for all individuals. Variability in body composition, exercise intensity, and individual metabolic differences can result in inaccuracies. The tool does not account for additional factors such as age, gender, and fitness level, which can influence calorie burn. Also, it cannot provide precise calculations for activities not included in standard MET tables. Finally, the calculator is limited to activities performed continuously without breaks, which may not reflect actual caloric burn in certain sports or activities. ## FAQs **Q:** How are MET values determined for different activities? **A:** MET values are established based on research and observation of oxygen consumption during specific activities, typically conducted in controlled environments. **Q:** Why is weight measured in kilograms, and can I use pounds? **A:** Weight is measured in kilograms for consistency with scientific research; to convert pounds to kilograms, divide the weight in pounds by 2.2046. **Q:** Can I use this calculator for activities not listed? **A:** The calculator relies on standard MET values; for activities not listed, consult relevant literature or databases to find appropriate MET values. **Q:** How do factors like age and gender affect calorie burn? **A:** Age and gender influence basal metabolic rate and exercise efficiency; older adults typically have a lower metabolic rate, while males generally have a higher muscle mass, affecting caloric expenditure. --- *Generated from [complete.tools/calories-burned-calc](https://complete.tools/calories-burned-calc)*