Understanding how many calories different exercises burn helps you plan your training for fat loss, track your energy expenditure, and avoid the common mistake of overestimating exercise calorie burn.
This calculator uses MET (Metabolic Equivalent of Task) values — the scientifically validated method for estimating exercise energy expenditure — personalised to your body weight.
How MET-Based Calorie Calculations Work
MET (Metabolic Equivalent of Task) values represent the ratio of exercise energy expenditure to resting energy expenditure. A MET of 1 = resting; MET of 8 = burning 8× your resting metabolic rate. Calories = MET × weight (kg) × duration (hours). MET values come from the Compendium of Physical Activities, a comprehensive database of exercise intensities maintained by exercise scientists.
Why Calorie Burn Estimates Vary
Exercise calorie estimates have ±20–30% accuracy. Variables that affect actual burn include: fitness level (fitter people burn fewer calories for the same work), body composition (more muscle = slightly higher burn), terrain and environment (uphill, heat, wind), exercise efficiency (experienced runners use less energy per step), and individual metabolic variation.
The Afterburn Effect (EPOC)
Intense exercise creates 'excess post-exercise oxygen consumption' (EPOC) — elevated calorie burning for 12–48 hours after a hard session. HIIT produces the largest EPOC effect (an additional 6–15% of session calories). Strength training also creates meaningful EPOC. EPOC is not captured in session calorie estimates but is a real advantage of high-intensity training for fat loss.
Does Body Weight Affect Calorie Burn?
Yes — significantly. Heavier individuals burn more calories for the same exercise because they must move more mass. A 100 kg person burns approximately 40% more calories running the same distance as a 70 kg person. This is why absolute calorie burn targets are less useful than personalised calculations based on your actual weight.
💡 Expert Tips
- ✓Don't use exercise as a 'reward' for eating — this creates an unhealthy relationship with food and exercise. Calories burned in exercise are typically 50–100% less than people estimate.
- ✓Non-Exercise Activity Thermogenesis (NEAT) — fidgeting, walking, standing — often burns more calories than structured exercise. Increasing daily step count is one of the highest-leverage changes for total calorie expenditure.
- ✓High-intensity exercise (HIIT, sprinting, heavy lifting) creates an afterburn effect that increases total calorie burn by 10–20% beyond what session estimates show.
- ✓Fasted cardio (before breakfast) doesn't burn more total fat than fed cardio — the 24-hour fat balance is what matters, not the exercise session in isolation.
- ✓Hydration significantly affects exercise performance and perceived exertion — even mild dehydration (2% of body weight) can reduce calorie burn during exercise by reducing intensity capacity.
📊 Calories Burned Per Hour by Exercise Type (75 kg person)
| Exercise | MET | Cal/hr | Cal/30 min |
|---|---|---|---|
| Walking 5 km/h | 3.5 | 263 kcal | 132 kcal |
| Brisk walking 6 km/h | 4.3 | 323 kcal | 161 kcal |
| Running 8 km/h | 8.3 | 623 kcal | 311 kcal |
| Running 12 km/h | 11.8 | 885 kcal | 443 kcal |
| Cycling 15 km/h | 6.8 | 510 kcal | 255 kcal |
| Swimming (moderate) | 5.8 | 435 kcal | 218 kcal |
| HIIT Training | 8.0 | 600 kcal | 300 kcal |
| Weight Training | 5.0 | 375 kcal | 188 kcal |
| Jump Rope | 11.8 | 885 kcal | 443 kcal |
| Yoga | 3.0 | 225 kcal | 113 kcal |
Frequently Asked Questions
How accurate are calorie burn calculators?+
Do you burn more calories running or walking the same distance?+
Does muscle or fat burn more calories during exercise?+
What exercise burns the most calories?+
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