How MyNetDiary gives you the best estimate of exercise calorie-burning through METs (Metabolic Equivalents)
- 2 Minutes Read
If you're curious about how exercise and physical activity calories are estimated, learn how MyNetDiary uses metabolic equivalent (MET) formulas. Plus, get tips for accurate tracking and maximizing your calorie burning.
MyNetDiary’s built-in exercise calculator relies on the best science available to help you estimate calories burned during exercise. Developed at Stanford University, the Adult Compendium of Physical Activities is a standardized way to assign intensity units to physical activity. More specifically, the units featured in the compendium are metabolic equivalents or METs.
MET is the energy ratio expended with a particular activity compared to the resting metabolic rate. One MET is defined as one kcal/kg/hour and is roughly equivalent to the energy cost of sitting quietly. The MET unit applies to various body weights of adults to estimate calories burned with different activities. For example, a 2.3 MET activity (i.e., Hatha yoga) requires two-and-a-third times the metabolic energy of sitting quietly.
Exercise intensity level | Exercise MET |
Light (requires less than 3 MET) | Guitar playing, sitting 2.0 Operating snowblower, walking 2.5 Billiards 2.5 Playing catch football or baseball 2.5 Wall or lawn darts 2.5 Walking 2.0-2.4 mph, slow pace 2.8 |
Moderate (3-6 MET) |
Golf, walking, pulling clubs 4.5 Low-impact aerobics 4.8 Resistance training (squats) 5.0 Shoveling snow by hand 5.3 Walking 4.0 mph, a very brisk pace 5.5 Water aerobics 5.5 |
Vigorous (greater than 6 MET) |
Tennis, general, moderate effort 6.8 Skiing, general, 7.0 Racquetball 7.0 Bench step class 7.8 Stationary bicycling, rigorous 10.8 Jumping rope, moderate pace 11.0 |
Of course, MET calculations are estimates and are not 100% accurate. To get a precise number, you would need to go into a science lab that measures your oxygen consumption during a specific exercise. Age, body temperature, fitness level, and even sleep will impact the exact calorie expenditure in the exercise intensity scale. Therefore, we can only rely on the best science-based calculations to estimate calories burned with specific exercises.
To maximize weight loss, most people turn off the toggle to add exercise calories to the calorie budget in Settings. Also, the simplest way to avoid overestimating your Daily Food Calorie Budget is to set your Activity Level to "sedentary" in the Plan section. The sedentary level accounts for ordinary, everyday activities. You can find additional information on activity levels in this Planning weight and calories article.
If you cannot find the exact exercise to record, please look for the closest activity for tracking purposes.
To avoid overestimating calories burned, only count your exercise's active time. For example, if you take a 60-minute class, record the minutes you perform cardio or resistance exercises.
Fitness devices offer the best solution for tracking interval workouts because they calculate calories expended based on measured heart rate. MyNetDiary syncs with such fitness trackers as Fitbit, Garmin Connect, and Withings. Also, devices featuring Apple Health or Google Fit sync data directly into the MyNetDiary app, so you do not have to enter the information manually.
Step Bonus is a feature available with a Premium MyNetDiary membership. This feature allows you to capture extra calories burned for walking more steps than what your Activity Level already includes. To turn on this feature, go to Settings and enter “Step Bonus” in the search bar. You can learn more about Step Bonus here.
If you’d like to maximize your fitness and calorie burn, look at the Compendium of Physical Activities tables for ways to increase your metabolic equivalent (MET). For example, you could increase your walking pace from 2.0 mph (MET 2.8) to 4.0 mph (MET 5.5). Or you could increase leisure bicycling from 5.5 mph (MET 3.5) to 10 mph (MET 6.8). You will not only burn extra calories but will also help condition your body and respiratory system. Always check with your healthcare provider to get approval for more strenuous workouts.
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