The Weight Training Calorie Calculator estimates the number of calories burned during a weightlifting session based on your body weight, duration, and exercise intensity. Using MET (Metabolic Equivalent of Task) values corresponding to light, moderate, or vigorous training, it calculates energy expenditure to help track fitness goals, manage calorie intake, and monitor the effectiveness of your weight training workouts. Actual calories may vary depending on individual metabolism, training experience, and exercise technique.