Calories Burned Calculator — 40+ Activities & MET
Calculate calories burned during any exercise or physical activity using MET values, body weight, and duration. Covers 40+ activities including running, cycling, swimming, weightlifting, and daily tasks. Compares net vs gross calories burned.
Quick Presets
What Is the Calories Burned Calculator — 40+ Activities & MET?
This calculator applies the MET (Metabolic Equivalent of Task)formula — the gold standard used in exercise science — to estimate calories burned for over 45 activities, from running and swimming to office work and sleeping. It also computes net calories (above resting rate), shows food equivalents, lets you build a multi-activity workout session, and compares burn across five body weights.
- ›45+ activities with validated MET values — categorised into Running, Walking, Cycling, Swimming, Strength training, Cardio classes, Sports, and Daily activities with a searchable dropdown.
- ›Gross vs net calories — gross is the total energy cost; net subtracts resting metabolic rate so you see the actual benefit of the exercise itself.
- ›Food equivalent panel — translates your calorie burn into relatable quantities: slices of bread, apples, hamburgers, chocolate bars, or orange juice.
- ›Multi-activity session builder — add up to 5 exercises to a workout and see a combined session total with per-activity breakdown.
- ›Weight comparison table — instantly see how the same activity burns across 50, 65, 80, 95, and 110 kg body weights.
Formula
Gross Calories Burned (MET formula)
Calories = MET × weight (kg) × duration (hours)
Net Calories Burned
Net = Gross − resting calories
Resting = 1.05 × weight (kg) × duration (hours)
Net = (MET − 1.05) × weight (kg) × duration (hours)
Calories per Minute
Cal/min = Gross calories / duration (min)
| Symbol | Name | Description |
|---|---|---|
| MET | Metabolic Equivalent of Task | Ratio of activity energy cost to resting metabolic rate — 1 MET = resting energy expenditure |
| weight | Body weight (kg) | Heavier individuals burn more calories for the same activity at the same duration |
| t | Duration (hours) | Activity duration in hours — multiply minutes by 1/60 to convert |
| 1.05 | Resting MET multiplier | Approximates resting metabolic rate per kg per hour for net calorie calculation |
| Gross | Gross calories | Total energy expended including calories that would be burned at rest |
| Net | Net calories | Extra energy burned above what you would have burned resting — the true activity cost |
How to Use
- 1Enter body weight: Type your weight in kg or lbs using the unit toggle.
- 2Set duration: Enter how many minutes you performed or plan to perform the activity.
- 3Choose an activity: Click the activity field and type to search, or browse by category in the dropdown. Each option shows its MET value.
- 4Press Calculate: Results appear: gross calories, net calories, cal/min, food equivalents, and the option to expand the weight comparison table.
- 5Build a session (optional): Set weight, duration, and activity, then click "+ Add to session" to add it. Repeat for up to 5 activities to see a combined session total.
- 6Compare across weights: Expand the "calories burned at different body weights" panel to see a 5-row comparison from 50 to 110 kg.
Example Calculation
75 kg person running at 6 mph (MET = 10.0) for 30 minutes
Given: MET = 10.0, weight = 75 kg, duration = 30 min = 0.5 hr
Step 1: Gross calories
Gross = MET × weight × duration(hr)
= 10.0 × 75 × 0.5
Gross = 375 kcal
Step 2: Resting calories (what you'd burn at rest)
Resting = 1.05 × 75 × 0.5 = 39.4 kcal
Step 3: Net calories (true exercise benefit)
Net = 375 − 39.4
Net = 335.6 kcal
Step 4: Cal/min
Cal/min = 375 / 30 = 12.5 kcal/min
Food equivalents for 375 kcal burned
| Body weight | Gross cal | Net cal | Cal/min |
|---|---|---|---|
| 50 kg | 250 kcal | 197 kcal | 8.3 |
| 65 kg | 325 kcal | 256 kcal | 10.8 |
| 80 kg ★ | 400 kcal | 316 kcal | 13.3 |
| 95 kg | 475 kcal | 375 kcal | 15.8 |
| 110 kg | 550 kcal | 434 kcal | 18.3 |
Understanding Calories Burned — 40+ Activities & MET
What Is MET and How Is It Measured?
MET stands for Metabolic Equivalent of Task. By definition, 1 MET equals the energy expenditure of a person sitting quietly — approximately 3.5 mL of oxygen per kg of body weight per minute, or roughly 1 kcal per kg per hour. An activity with a MET of 10 burns 10 times as much energy per unit time as sitting still.
- ›MET values are determined by indirect calorimetry — measuring oxygen consumption during the activity.
- ›The Compendium of Physical Activities (Ainsworth et al.) is the authoritative published source for MET values, covering over 800 activities.
- ›MET values represent an average across a population — individual values vary by up to 20% based on fitness, technique, and genetics.
- ›Light activities (MET 1–3): standing, cooking, slow walking. Moderate (MET 3–6): brisk walking, light cycling. Vigorous (MET > 6): running, swimming, HIIT.
Gross vs Net Calories Burned
The distinction between gross and net calories matters when using calorie data for weight management:
- ›Gross calories = MET × weight(kg) × duration(hr). This is the total energy your body expends during the activity, including what you would have burned just by being alive.
- ›Net calories = Gross − resting calories. Resting energy expenditure is approximately 1.05 × weight(kg) × duration(hr). Net calories represent the extra energy burned solely because you exercised.
- ›Fitness trackers and most calorie counters typically report gross calories, which can overstate the benefit by 10–30% for low-intensity activities.
- ›For caloric deficit calculations, net calories is the more accurate figure to use, as your TDEE already accounts for the resting component.
Why calorie burn estimates vary between sources
Different apps and calculators often produce different calorie estimates for the same activity. Common reasons: (1) some use gross, others net calories; (2) MET tables are averages — actual burn varies with fitness level, terrain, pace variation, and body composition; (3) some tools use heart rate models rather than MET. The MET formula used here is the most transparent and reproducible method.
How Body Weight Affects Calorie Burn
Calorie burn scales linearly with body weight in the MET formula. A 100 kg person burns exactly twice as many calories as a 50 kg person doing the same activity at the same intensity. This has an important implication:
- ›As you lose weight, you automatically burn fewer calories for the same workout.
- ›A 90 kg person running 5 km burns ~650 kcal; a 60 kg person running the same route burns ~430 kcal.
- ›This is why recalculating TDEE and workout calorie burn after every 5 kg of weight change is good practice.
- ›Resistance training partially counters this: increased muscle mass raises your resting metabolic rate.
Factors That Affect Actual Calorie Burn
The MET formula gives a reliable population estimate, but actual individual burn varies due to:
| Factor | Effect | Magnitude |
|---|---|---|
| Fitness level | Fitter individuals burn fewer calories at the same absolute pace | 5–20% lower |
| Body composition | Muscle burns more at rest; higher fat % reduces relative burn | 5–15% variance |
| Terrain & conditions | Hills, wind, and heat increase energy cost | 10–30% higher |
| Age | Metabolic rate declines ~2% per decade after 30 | Gradual reduction |
| Sex | Men typically burn more due to higher lean mass | 5–10% difference |
| Temperature | Cold environments increase calorie burn slightly (thermogenesis) | 5–10% higher |
Using Calorie Burn Data for Weight Loss
Exercise calorie burn is only one side of the energy balance equation. To use this data effectively:
- ›Do not eat back all exercise calories. Fitness trackers consistently overestimate burn by 15–30%, and hunger signals after exercise often lead to compensatory eating that cancels out the deficit.
- ›Combine with dietary tracking. Exercise alone produces modest weight loss. Studies show 80% of the caloric deficit needed for weight loss is more effectively achieved through dietary adjustment.
- ›Focus on consistency over intensity. A 30-minute brisk walk every day (≈ 150–250 kcal) accumulates 1,050–1,750 kcal/week — equivalent to 0.14–0.23 kg of fat — with much lower injury risk than aggressive workouts.
- ›Resistance training compounds benefits. While it burns fewer calories during the session than cardio, resistance training increases lean muscle mass, which raises your resting metabolic rate and improves body composition.
Frequently Asked Questions
What is a MET value and why does it matter?
MET is the core of exercise calorie estimation in exercise science:
- ›1 MET = approximately 3.5 mL O₂/kg/min or 1 kcal/kg/hr at rest
- ›Activities are classified: sedentary (MET 1–1.5), light (1.5–3), moderate (3–6), vigorous (>6)
- ›The formula: Calories = MET × weight(kg) × duration(hr) is universally used
- ›MET values come from the Compendium of Physical Activities (Ainsworth et al., last updated 2011)
MET values represent averages — your actual burn can be 10–20% higher or lower based on individual fitness, technique, and body composition.
What is the difference between gross and net calories burned?
The difference becomes significant for low-MET activities:
- ›Running (MET 10): gross = 750 kcal, resting = 79 kcal, net = 671 kcal for 75kg/60min — small difference
- ›Walking slowly (MET 2.8): gross = 210 kcal, resting = 79 kcal, net = 131 kcal — 37% lower net
- ›Yoga (MET 2.8): same calculation — nearly 40% of "burned" calories were burned at rest anyway
- ›For weight loss, use net calories to avoid double-counting resting burn already in your TDEE
Use gross for tracking total daily energy expenditure; use net when calculating whether exercise creates additional deficit beyond your TDEE.
How accurate are calorie burn calculators?
Accuracy breakdown by source of variation:
- ›MET formula vs indirect calorimetry: ±10–15% for most activities
- ›Fitness level: trained athletes burn 15–20% fewer calories than sedentary individuals at the same pace
- ›Body composition: same weight but different fat/muscle ratio can affect burn by 5–10%
- ›Environmental factors (terrain, temperature): ±10–30% for outdoor activities
For the most accurate personal measurements, wearable heart rate monitors combined with personal VO₂max data are more precise than MET tables, but MET remains the most practical and transparent population-level method.
Does a heavier person always burn more calories?
Weight and calorie burn are directly proportional in the MET model:
- ›75 kg person running 30 min at 6 mph: ~375 kcal
- ›100 kg person, same run: ~500 kcal (33% more)
- ›50 kg person, same run: ~250 kcal (33% less)
- ›Each kg of body weight ≈ 5 kcal per hour of running at 6 mph
The implication for weight loss: as you progress toward your goal weight, the same workout becomes less effective calorically. You need to either increase duration, intensity, or frequency to maintain the same weekly calorie burn.
Which burns more calories — cardio or weight training?
Comparing typical 45-minute sessions (75 kg person):
- ›Running at 6 mph: ~563 kcal gross
- ›HIIT: ~563 kcal gross (plus elevated post-exercise burn for 12–24 hours)
- ›Weight lifting moderate: ~197 kcal gross
- ›Circuit training: ~450 kcal gross (combines both)
EPOC (excess post-exercise oxygen consumption) after high-intensity exercise adds an extra 50–200 kcal in the hours following the workout — something the calculator does not model but which benefits resistance training and HIIT disproportionately.
How much exercise is needed to lose 1 kg per week?
The maths of exercise-only weight loss:
- ›1 kg fat ≈ 7,700 kcal
- ›To lose 1 kg/week via exercise: need 7,700 kcal/week extra burn = 1,100 kcal/day of exercise
- ›A 75 kg person running 6 mph for 1 hour burns ~750 kcal — short of the target by far
- ›Running 1.5 hours daily, 7 days a week to hit 1 kg/week loss — unsustainable for most
Practical recommendation: combine a 300–500 kcal/day dietary deficit with 200–400 kcal of exercise per day to achieve 0.5 kg/week loss without overtraining or extreme restriction.
Does the calculator save my inputs?
Session persistence is handled via browser localStorage:
- ›Body weight, duration, and selected activity are saved as you type
- ›Workout session activities are also preserved
- ›All data stays on your device — nothing is sent to any server
- ›Data is restored automatically when you revisit the page
Click Reset All to clear the form and the localStorage entry simultaneously.