This Mobility MET Calculator helps you estimate the calories burned during gentle, low-impact activities like walking, cycling, yoga, and stretching. It uses the Metabolic Equivalent of Task (MET) values from the Compendium of Physical Activities to convert your body weight and activity duration into a realistic calorie estimate.
Whether you're recovering from an injury, building a daily movement habit, or simply curious about your energy expenditure, this tool gives you a quick, science-based number. You can choose from a range of common mobility-focused activities, adjust your weight in pounds or kilograms, and even factor in your age and sex for a more personalized estimate.
Use the preset buttons to quickly load typical MET values, or select your own from the dropdown. The result includes a step-by-step breakdown so you can see exactly how the calculation works.
🧮 Mobility MET Calculator
How to Use This Tool
Using the Mobility MET Calculator is straightforward. Start by selecting an activity from the dropdown — each option carries a MET value from the Compendium of Physical Activities. If you prefer, click one of the quick preset buttons to load a common activity instantly. Next, enter your body weight and choose whether it's in kilograms or pounds. Then enter the duration of your session, either in minutes or hours. The age and sex fields are optional but can refine your estimate slightly.
Once you press Calculate, the tool computes your estimated calories burned using the standard MET formula. The result area shows the main number plus a breakdown of the calculation steps, so you can verify the math yourself.
How It Works
The MET (Metabolic Equivalent of Task) system expresses the energy cost of physical activities as a multiple of resting metabolic rate. One MET equals roughly 1 kcal per kilogram of body weight per hour — the energy you burn while sitting quietly. An activity with a MET of 3.0, like brisk walking, requires three times that resting energy expenditure.
The basic formula is:
Calories burned = MET × weight (kg) × duration (hours)
For example, a 70 kg person walking briskly (MET 3.0) for 30 minutes would burn:
3.0 × 70 × 0.5 = 105 kcal
This is the same approach used by many fitness trackers and health organizations. The optional age and sex adjustment applies a small correction factor based on research showing that resting metabolic rate declines slightly with age and differs between sexes. The factor is capped at ±10% to keep estimates conservative.
Worked Examples
Example 1: Gentle Yoga Session
A 60 kg woman does 45 minutes of Hatha yoga (MET 2.5).
Calories = 2.5 × 60 × 0.75 = 112.5 kcal.
Example 2: Leisurely Bike Ride
A 80 kg man cycles at 10–12 mph for 1 hour (MET 6.8).
Calories = 6.8 × 80 × 1 = 544 kcal.
Example 3: Light Stretching
A 55 kg person stretches for 20 minutes (MET 2.3).
Calories = 2.3 × 55 × 0.333 = 42.1 kcal.
Tips & Best Practices
- Use your current body weight, not an ideal weight, for the most accurate estimate.
- Be honest about intensity — a gentle stroll burns fewer calories than a power walk.
- For interval sessions, split the time into segments and add the results.
- Remember that MET values are averages; individual fitness level and terrain can shift the actual number.
Factors Affecting Accuracy
MET values are derived from laboratory studies with healthy adults. Your personal calorie burn can vary due to age, muscle mass, genetics, and how efficiently you move. The optional age/sex adjustment helps but cannot capture everything. For weight management, treat this as an estimate, not a precise measurement.
Frequently Asked Questions
What does MET stand for?
Metabolic Equivalent of Task. It's a standard unit used to describe the energy cost of activities.
Can I use this for weight loss planning?
Yes, but combine it with your total daily energy expenditure and dietary intake. A calorie deficit of about 500 kcal per day typically leads to 0.5 kg of weight loss per week.
Why does the calculator ask for age and sex?
These factors influence resting metabolic rate. The adjustment is small but can make the estimate slightly more personalized.
Are MET values the same for everyone?
No, they are population averages. Your actual burn may be higher or lower depending on your physiology and effort.
Additional Resources
For more detailed MET values, refer to the Compendium of Physical Activities, a widely used research resource. You can also explore our Walking MET Calculator for walking-specific estimates, or the Strength MET Calculator for resistance training.