MET Calculator

Enter your MET value, body weight, and activity duration to calculate calories burned, oxygen consumption, estimated fat burned, and more.

Created by Luis GonzalezLast updated: May 9, 2026

How to Use This Calculator

1
Enter the MET value for your activity
Input the Metabolic Equivalent of Task (MET) value for your specific physical activity. Common values range from 3.5 for walking to 10 for running.
2
Input your body weight
Enter your current body weight in pounds (lbs). This is a crucial factor in determining caloric expenditure.
3
Specify the duration of your activity
Enter the total time you performed the activity, in minutes. The longer the duration, the higher the caloric burn.
4
Review your activity metrics
The calculator will display your total calories burned, calories per minute/hour, oxygen consumption (VO₂), estimated fat burned, and equivalent steps.

Example Calculation

An individual wants to calculate calories burned during a 30-minute workout with a MET value of 5, weighing 170 lbs.

MET Value

Body Weight

170 lbs

Duration

30 min

Results

193 kcal

Tips

Find Accurate MET Values

For precise calculations, consult the 'Compendium of Physical Activities' (available from the American College of Sports Medicine) to find the most accurate MET values for your specific activity and intensity level. Generic values are good, but specifics are better.

Combine with Heart Rate Data

While METs provide a good estimate, individual caloric burn can vary. For more accurate tracking, combine MET calculations with heart rate monitor data, especially for varied intensity workouts. Higher heart rate generally correlates with higher calorie expenditure.

Focus on Consistency, Not Just Calories

Instead of solely chasing high calorie burn, prioritize consistent exercise. Even activities with lower MET values, like walking (3.5 METs), accumulate significant caloric expenditure and health benefits over time if done regularly. A 30-minute walk burns around 170 kcal for a 150lb person.

Quantifying Your Workouts: The MET Calculator

The MET Calculator quantifies calories burned, fat burned, and activity intensity using Metabolic Equivalent of Task (MET) values for any physical activity, based on your weight and duration. This tool is essential for fitness enthusiasts and professionals alike to track energy expenditure accurately. For example, a 170-pound individual performing an activity with a MET value of 5 for 30 minutes will burn approximately 193 kcal, a key metric for managing fitness goals in 2025.

Understanding Energy Expenditure in Exercise

Metabolic Equivalent of Task (MET) values are a cornerstone of exercise science, providing a standardized way to quantify the energy cost and intensity of physical activities. Derived from extensive research, particularly documented in the Compendium of Physical Activities, MET values express the energy expenditure of an activity relative to rest. One MET is defined as 3.5 mL of oxygen consumed per kilogram of body weight per minute. Activities are categorized by their METs: moderate intensity activities typically fall between 3-6 METs (e.g., brisk walking), while vigorous activities are above 6 METs (e.g., jogging, swimming). Understanding these values allows individuals to benchmark their workouts, compare different activities, and tailor their exercise routines for specific caloric burn or fitness goals.

The Science Behind METs and Calorie Burn

The calculation of calories burned using METs is based on a well-established physiological formula. It leverages your body weight, the MET value of the activity, and the duration to estimate total energy expenditure. The MET value essentially represents the oxygen consumption per unit of body weight per unit of time, which is then converted into caloric burn.

Weight (kg) = Body Weight (lbs) × 0.453592
Duration (hours) = Duration (min) / 60
Calories Burned (kcal) = MET Value × Weight (kg) × Duration (hours)

This formula provides a robust estimate of the energy you expend during physical activity.

💡 To further refine your understanding of cardiovascular fitness, our Cycling VO2 Max Estimator can help assess your aerobic capacity.

Calculating Calories for a 30-Minute Workout

Let's consider an individual weighing 170 lbs who performs an activity with a MET value of 5 for 30 minutes.

Convert Weight to Kilograms: 170 lbs × 0.453592 = 77.11 kg.
Convert Duration to Hours: 30 min / 60 = 0.5 hours.
Calculate Calories Burned: 5 METs × 77.11 kg × 0.5 hours = 192.775 kcal.
Round Result: Approximately 193 kcal.

The primary result is 193 kcal, representing the total calories burned during the activity.

💡 For setting daily activity targets, our Daily Step Goal Calculator can help you plan your physical activity levels.

Interpreting MET Values for Personalized Fitness

Fitness professionals utilize MET values as a foundational tool for designing personalized exercise prescriptions and evaluating client progress. By understanding the METs associated with various activities, trainers can recommend appropriate intensity levels to help clients achieve specific goals, whether it's weight management, cardiovascular improvement, or endurance building. For example, a beginner might start with activities around 3-4 METs, gradually progressing to 6-8 METs as their fitness improves. However, expert interpretation also accounts for individual variability; factors like age, sex, body composition, and even environmental conditions (e.g., altitude, temperature) can influence the actual energy expenditure compared to standard MET values. Therefore, while METs provide a strong baseline, professionals often combine this data with heart rate monitoring, perceived exertion scales, and client feedback to fine-tune activity recommendations, ensuring both effectiveness and safety.

Frequently Asked Questions

What does MET stand for in fitness?

MET stands for Metabolic Equivalent of Task, which is a physiological measure expressing the energy cost of physical activities. One MET is defined as the amount of oxygen consumed at rest, approximately 3.5 milliliters of oxygen per kilogram of body weight per minute. Activities are assigned MET values based on how many times more energy they require than resting metabolism. For example, an activity with a MET value of 5 requires five times the energy expenditure of resting.

How are calories burned calculated using METs?

Calories burned using METs are calculated with the formula: Calories = METs × Body Weight (kg) × Duration (hours). First, your body weight in pounds is converted to kilograms. Then, the MET value of the activity is multiplied by your weight in kilograms and the duration of the activity in hours. This provides an estimated total caloric expenditure, helping quantify the energy used during exercise.

What is a good MET value for exercise?

A 'good' MET value depends on your fitness goals and current physical condition. Activities with MET values between 3 and 6 are considered moderate-intensity, such as brisk walking or light cycling. Activities with MET values above 6 are vigorous-intensity, like running, swimming laps, or high-impact aerobics. Aiming for a mix of moderate and vigorous activities, totaling at least 150 minutes of moderate or 75 minutes of vigorous exercise per week, is generally recommended by health organizations.

How does body weight affect calories burned?

Body weight significantly affects the number of calories burned during an activity. A heavier individual will burn more calories performing the same activity for the same duration than a lighter individual, even with the same MET value. This is because it requires more energy to move a greater mass. The formula for calories burned directly multiplies the MET value by body weight in kilograms, highlighting this direct relationship.