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Calories Burned Calculator
Calculate calories burned during exercise, walking, running, swimming and 100+ activities using MET values. Track energy expenditure for fitness and weight l...
Calories Burned Calculator
Calculate calories burned for any activity using MET values
Track Your Activity
Calculate calories burned using scientifically validated MET values
Your Weight
About MET Values & Calorie Expenditure
1 MET = Rest
~1 cal/kg/hour
Running
8-15 METs depending on speed
Database Size
800+ activities cataloged
Related Articles
📚 In-Depth Guide
This calculator is part of a comprehensive guide
Exercise calorie burn is calculated using MET (Metabolic Equivalent of Task): Calories = MET × weight(kg) × duration(hours). MET 1.0 = resting; brisk walk ≈ 3.5 MET; running at 6 mph ≈ 9.8 MET. Values are sourced from the Compendium of Physical Activities (Ainsworth et al.). Heavier individuals burn proportionally more calories for the same activity. EPOC (excess post-exercise oxygen consumption) from HIIT or heavy lifting elevates metabolism for 12–48 hours post-workout, adding 50–200 extra calories burned beyond the session itself.
🏃 Calories Burned — Complete Guide
Reviewed by CalculatorApp.me Health Editorial Team · Updated March 2026 · 10 min read
⚡ What Are MET Values?
MET stands for Metabolic Equivalent of Task. It's a unit that expresses how much energy an activity requires relative to sitting quietly at rest. Sitting at rest has a MET value of 1.0 — any activity above that burns more calories proportionally.
The MET concept was developed by Dr. William Bortz and refined through the Compendium of Physical Activities (Barbara Ainsworth, 1993), which catalogued hundreds of activities with standardized MET values.
The formula is straightforward: Calories/min = MET × Weight(kg) × 3.5 ÷ 200. This means a heavier person burns more calories doing the same activity at the same intensity — because they move more mass.
MET Value Examples
🧮 How Calories Burned Is Calculated
MET Formula
Example: 70kg person jogging (MET 7.0) for 30 minutes:
What Affects the Estimate?
- • Body weight (heavier = more calories)
- • Exercise intensity (higher MET = more calories)
- • Individual fitness level affects efficiency
- • Muscle mass impacts resting metabolic rate
- • Environmental factors (heat, altitude, terrain)
Accuracy Note: MET-based calculations have a typical error of ±10–20%. For higher accuracy, use heart rate monitoring or metabolic testing (VO2 max).
🏅 Calories Burned by Activity Category
| Category | MET Range | kcal/hr (70kg) | Examples |
|---|---|---|---|
| Sedentary | 1.0–1.5 | 70–100 kcal | Sitting, watching TV, reading |
| Light | 1.6–2.9 | 110–200 kcal | Slow walking, cooking, office work |
| Moderate | 3.0–5.9 | 210–410 kcal | Brisk walking, cycling, yoga, swimming |
| Vigorous | 6.0–8.9 | 420–620 kcal | Jogging, aerobics, sports, lap swimming |
| Very Vigorous | 9.0+ | 630+ kcal | Sprint running, competitive cycling, boxing |
Values based on 70kg (154lb) person. Scale proportionally for your weight. Source: Ainsworth BE et al. Compendium of Physical Activities.
💡 NEAT vs. EAT: The Hidden Calorie Burn
Total daily calorie expenditure is much more than just formal exercise. Understanding the components of TDEE helps you maximize total calorie burn — not just during workouts.
🟢 NEAT — Non-Exercise Activity Thermogenesis
All the calories burned during everyday movements that aren't formal exercise: walking between rooms, fidgeting, typing, standing, stair climbing.
NEAT can vary by up to 2,000 kcal/day between sedentary and active individuals.
- • Standing vs. sitting: +50 kcal/hr
- • Walking meetings: +100–200 kcal/hr
- • Using stairs: +30–50 kcal for 10 floors
- • Fidgeting: +100–300 kcal/day
🔵 EAT — Exercise Activity Thermogenesis
Calories burned during intentional, structured exercise: gym workouts, running, cycling, sports. This is what most people focus on — but it's often only 5–10% of total daily energy expenditure.
EAT averages 300–600 kcal for a typical 45-60 min workout.
- • 30 min run (~6mph): ~350 kcal (70kg)
- • 45 min strength training: ~200 kcal
- • 60 min cycling (14-16mph): ~500 kcal
- • 60 min swimming laps: ~450 kcal
🚀 How to Maximize Calorie Burn
Increase Intensity
Higher intensity multiplies calorie burn dramatically. Running at 8mph burns roughly 60% more than running at 5mph. HIIT (High-Intensity Interval Training) can also produce an afterburn effect (EPOC) for hours post-exercise.
Increase Duration
Doubling duration doubles calorie burn (linear relationship). Adding just 10–15 minutes to each workout session creates a meaningful weekly deficit over time. Aim for 150–300 minutes of moderate activity per week (WHO guidelines).
Build Muscle Mass
Muscle tissue burns ~3x more calories at rest than fat tissue. Building muscle through resistance training raises your BMR permanently — 5 kg of added muscle can burn an extra 250–350 kcal/day even at rest.
📜 History of Exercise Science & Calorie Measurement
Antoine Lavoisier first quantitatively measures oxygen consumption and CO2 production in humans, establishing the foundation of metabolic measurement.
Benedict and Carpenter publish "Food Ingestion and Energy Transformation," a cornerstone of nutritional science describing energy balance in humans using direct calorimetry.
Air Force researcher Dr. Kenneth Cooper introduces the concept of aerobic fitness and exercise as preventive medicine, transforming public perception of physical activity.
Barbara Ainsworth and colleagues publish the first Compendium of Physical Activities, assigning MET values to 605 activities — the gold standard reference for calorie burn calculators today.
Consumer wearable fitness trackers (Fitbit, Apple Watch) democratize calorie tracking, bringing MET-based estimation to millions and creating vast datasets for refining models.
Machine learning models trained on continuous glucose monitoring and wearable data deliver personalized calorie burn estimates, accounting for individual metabolic variation far beyond population-average MET tables.
🔬 Key Research on Exercise & Calorie Burn
Compendium of Physical Activities
Ainsworth BE et al. (2011). Updated compendium providing MET values for 821 physical activities.
NEAT and Obesity Prevention
Levine JA (2002). Non-exercise activity thermogenesis — liberating the life-force behind daily physical activity variation.
Physical Activity Guidelines
WHO global recommendations on physical activity for health, including weekly activity targets for adults.
🔍 Exercise Calorie Myths vs. Facts
You can out-exercise a bad diet
Exercise burns far fewer calories than most people believe. A 30-min run burns ~300 kcal — undone easily by one large soda or a slice of cake. Calorie intake reduction is more efficient for weight loss than exercise alone.
Cardio is the best exercise for burning calories
While cardio burns more calories during exercise, strength training raises your BMR, meaning you burn more calories 24/7. For total energy expenditure, resistance training combined with moderate cardio outperforms cardio alone.
Fitness trackers accurately measure calorie burn
Consumer wearables have 20–50% error rates for calorie expenditure. They are useful for trends and relative comparisons but should not be used as exact numbers for adjusting diet intake.
Sweating more means burning more calories
Sweat is your body cooling itself — it has no direct relationship to calorie burn. You can sweat heavily in a sauna without significant calorie expenditure, while cool-weather running burns high calories with little sweat.
❓ Frequently Asked Questions
How accurate is a MET-based calorie calculator?+
Does body weight really affect calorie burn?+
What burns more calories: cardio or strength training?+
How many calories should I burn per day to lose weight?+
Does exercising in the morning vs. evening affect calorie burn?+
What is the EPOC effect after exercise?+
Why do I burn fewer calories doing the same workout over time?+
Does swimming burn more calories than running?+
How many calories does 10,000 steps burn?+
Does fasted cardio burn more fat?+
What activity burns the most calories per hour?+
Can I trust calorie counts on gym equipment?+
References & Further Reading
- 1.Ainsworth BE et al. (2011). Compendium of Physical Activities: A second update of codes and MET values. Med Sci Sports Exerc, 43(8). View ↗
- 2.Levine JA. (2002). Non-exercise activity thermogenesis (NEAT). Best Practice & Research Clinical Endocrinology & Metabolism. View ↗
- 3.Jetté M, et al. (1990). Metabolic equivalents (METS) in exercise testing, exercise prescription, and evaluation of functional capacity. Clin Cardiol, 13(8). View ↗
- 4.WHO. (2020). Physical activity fact sheet. World Health Organization. View ↗
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Reviewed by CalculatorApp.me Health Team
Calories Burned Calculator — Complete Guide
MET values, weight-adjusted calorie burn, activity comparisons, and exercise energy expenditure science.
MET
Metabolic Equivalent of Task
3.5
MET of standing quietly
600–800
Kcal burned in 60-min run
70%
Max effort for fat burning
What Is a MET (Metabolic Equivalent of Task)?
The Metabolic Equivalent of Task (MET) is the ratio of the metabolic rate during a specific activity to the resting metabolic rate. One MET is defined as the energy cost of sitting quietly — approximately 3.5 ml of oxygen per kg of body weight per minute, or about 1 kcal per kg per hour.
An activity with a MET value of 4 burns four times more energy per minute than sitting quietly. This simple multiplication makes MET the standard framework for comparing energy costs of different activities across individuals of different body weights — since heavier people burn more absolute calories doing the same exercise, but the MET value remains the same.
The Compendium of Physical Activities, maintained by researchers at Arizona State University, catalogues MET values for over 800 activities — from sleeping (0.95 MET) to competitive cycling (16 MET). Our calculator draws from this validated database to estimate your calorie burn accurately.
Calorie Burn Formula
Calories = MET × Weight (kg) × Duration (hrs) Since 1 MET = ~1 kcal/kg/hr: Example 1: Jogging (MET 7.0) Person: 75 kg, Duration: 30 minutes Calories = 7.0 × 75 × 0.5 Calories = 262.5 kcal Example 2: Cycling moderate (MET 8.0) Person: 80 kg, Duration: 45 minutes Calories = 8.0 × 80 × 0.75 Calories = 480 kcal Example 3: Swimming laps (MET 6.0) Person: 65 kg, Duration: 60 minutes Calories = 6.0 × 65 × 1.0 Calories = 390 kcal Note: This is gross calorie expenditure (includes resting metabolism during exercise)
The MET formula calculates gross calorie burn (total including baseline metabolic rate during activity). Net calorie burn (above resting baseline) is ~10–15% lower for moderate-intensity activities.
Gross Calories = MET × kg × hrs
Net Calories = (MET − 1) × kg × hrs
(subtract 1 MET to remove resting
metabolism already counted in TDEE)
Example (Jogging MET 7.0, 75kg, 30min):
Gross = 7.0 × 75 × 0.5 = 262.5 kcal
Net = (7.0−1) × 75 × 0.5 = 225 kcal
Difference = 37.5 kcal
When to use each:
Gross: when estimating total energy
needs (e.g., for TDEE on exercise days)
Net: when estimating additional calories
burned ABOVE what you'd burn at rest,
to add to a sedentary TDEE baseline
Fitness trackers typically report gross.Fitness trackers and exercise machines often overestimate calorie burn by 15–50%. They fail to account for individual fitness level, which affects efficiency. Fitter individuals burn fewer calories doing the same work.
Heart Rate Method (Keytel 2005):
Men:
Calories = (-55.0969 + 0.6309×HR + 0.1988×wt
+ 0.2017×age) / 4.184 × time(min)
Women:
Calories = (-20.4022 + 0.4472×HR - 0.1263×wt
+ 0.074×age) / 4.184 × time(min)
Example (Male, 30y, 80kg, avg HR 150 bpm, 30min):
Cal = (-55.0969+0.6309(150)+0.1988(80)
+0.2017(30)) / 4.184 × 30
Cal = (-55.1+94.6+15.9+6.1)/4.184 × 30
Cal = 61.5/4.184 × 30
Cal = 14.7 × 30 = 441 kcal
HR method is more accurate than MET
for individual physiological responses.Heart rate-based formulas account for individual cardiovascular fitness. A fitter person will have a lower HR at the same work rate, correctly estimating lower calorie burn per minute due to greater mechanical efficiency.
EPOC = Excess Post-exercise Oxygen Consumption EPOC magnitude by exercise type: Low-intensity steady-state: EPOC: 5–15 kcal extra (30–60 min) Moderate-intensity (60–70% VO2max): EPOC: 15–50 kcal extra (up to 2 hrs) High-intensity interval training (HIIT): EPOC: 50–150 kcal extra (up to 24 hrs) Heavy resistance training: EPOC: 50–200 kcal extra (up to 48 hrs) Total EPOC contribution is often exaggerated in fitness marketing. For most people: 6–15% extra calories above measured workout burn. Don't double-count EPOC when calculating daily calorie targets.
EPOC is real but often dramatically overstated. The 'afterburn' from HIIT adds a meaningful but modest calorie bonus — not the 24-hour fat-melting effect some sources claim. Total daily movement (NEAT) has a much larger impact.
Common Activities — MET Values & Calorie Burn (70 kg person)
| Activity | MET | kcal/30 min | kcal/60 min | Intensity |
|---|---|---|---|---|
| Sleeping | 0.95 | 33 | 67 | Rest |
| Watching TV | 1.3 | 46 | 91 | Sedentary |
| Slow walking (2 mph) | 2.3 | 81 | 161 | Light |
| Hatha yoga | 2.5 | 88 | 175 | Light |
| Brisk walking (4 mph) | 4.0 | 140 | 280 | Moderate |
| Recreational cycling | 6.0 | 210 | 420 | Moderate |
| Swimming laps (moderate) | 6.0 | 210 | 420 | Moderate |
| Weight training | 5.0 | 175 | 350 | Moderate |
| Jogging (5 mph) | 7.0 | 245 | 490 | Vigorous |
| HIIT training | 8.0 | 280 | 560 | Vigorous |
| Running (8 mph) | 11.8 | 413 | 826 | High |
| Rowing (vigorous) | 12.0 | 420 | 840 | High |
Source: Ainsworth BE et al., Compendium of Physical Activities. Med Sci Sports Exerc. 2011. Values approximate for 70 kg person; individual burns vary ±15–25%.
Frequently Asked Questions
How accurate are calorie burn calculators?▼
MET-based calculators typically estimate within ±15–25% of actual energy expenditure measured by indirect calorimetry. Individual variation due to fitness level, exercise economy, and metabolic efficiency means the real figure can differ significantly. Heart rate monitors improve accuracy to ±10–15%.
Does weight affect how many calories I burn?▼
Yes — heavier people burn significantly more calories doing the same activity at the same intensity. A 100 kg person burns approximately 40% more calories running at the same pace as a 70 kg person, because more work is required to move greater mass.
Is it better to exercise at low intensity (fat burning zone) or high intensity?▼
High-intensity exercise burns more total calories in less time, even if the percentage from fat is lower. The absolute amount of fat burned may be similar or higher with HIIT vs. low-intensity steady state at matched total calorie burn. Total calorie expenditure is more important than the source of fuel during the workout.
References & Clinical Sources
- Ainsworth BE, et al. 2011 Compendium of Physical Activities. Med Sci Sports Exerc. 2011;43(8):1575–81.
- Keytel LR, et al. Prediction of energy expenditure from heart rate monitoring during submaximal exercise. J Sports Sci. 2005;23(3):289–97.
- Borsheim E, Bahr R. Effect of exercise intensity, duration and mode on post-exercise oxygen consumption. Sports Med. 2003;33(14):1037–60.