# Calories Burned Running > Estimate total energy expenditure for your run based on distance, weight, and pace. **Category:** Sports **Keywords:** running, calories, burn, fitness, cardio, weight loss, exercise, energy **URL:** https://complete.tools/calories-burned-running ## How it works To calculate the calories you burn, the tool needs your weight, running distance, and time. If you enter your weight in pounds, it’ll convert that to kilograms for you (remember, 1 pound equals 0.453592 kg). Next, it looks up the MET value based on your running pace. The formula is: Calories Burned = MET * Weight (kg) * Duration (hours). By multiplying the MET value, your weight in kilograms, and the duration of your run in hours, the tool gives you an estimate of the total calories burned. ## Who should use this This tool is great for a variety of users: recreational runners wanting to analyze their workouts and caloric burn, personal trainers crafting customized fitness plans, athletes prepping for competitions to manage their weight and energy levels, and health coaches evaluating clients' activity for weight loss programs. ## Worked examples Let’s look at a couple of examples. Example 1: Imagine a 150-pound person running for 30 minutes at a pace of 6 mph. First, we convert their weight: 150 lbs * 0.453592 = 68.18 kg. The MET value for 6 mph is 9.8. The running duration in hours is 0.5. So, the calculation is: Calories Burned = 9.8 * 68.18 * 0.5, which equals about 335 calories burned. Example 2: Now consider a 200-pound individual running for 45 minutes at 8 mph. After converting their weight: 200 lbs * 0.453592 = 90.72 kg, and with a MET of 11.8 for 8 mph, the duration in hours is 0.75. The calculation gives us: Calories Burned = 11.8 * 90.72 * 0.75, resulting in around 806 calories burned. These examples show how weight, pace, and duration all play a role in how many calories you burn while running. ## Limitations While this tool is helpful, it does come with some limitations. First, it assumes a fixed MET value based on your chosen pace, which might not reflect your individual metabolism or running efficiency. It also doesn’t consider environmental factors like wind resistance or terrain, both of which can influence how many calories you burn. Additionally, the tool uses a straightforward relationship between weight and calories burned, which might not apply to everyone due to different body compositions. Lastly, its accuracy may drop at very high or low speeds, where MET values can be less precise. ## FAQs **Q:** How does body composition affect caloric burn during running? **A:** Your body composition can impact your metabolic rate and caloric burn. Generally, those with more muscle mass tend to burn more calories compared to those with a higher fat mass at the same weight. **Q:** Why does running speed impact MET values? **A:** MET values shift with speed because they represent the physiological effort needed for different activity intensities—running faster demands more energy. **Q:** What are the limitations of using MET values for calculating calories burned? **A:** MET values might not capture personal differences in fitness level, efficiency, or environmental conditions, which can lead to inaccuracies in estimated calories burned. **Q:** Can I use this tool for other forms of exercise? **A:** This tool is specifically designed for running. Other exercises have their own MET values, and using the wrong one could give you inaccurate calorie estimates. --- *Generated from [complete.tools/calories-burned-running](https://complete.tools/calories-burned-running)*