🔥 Calories Burned Calculator
By ToolNimba Health Team · Reviewed by ToolNimba Editorial Review, fitness and nutrition content · Updated 2026-06-19
This calculator gives a rough estimate only, based on standard MET values for an average adult. Your real energy expenditure depends on your fitness level, exercise intensity, age, sex, body composition and metabolism, so two people doing the same activity can burn very different amounts. The result is not medical advice. Speak to a doctor or a qualified professional before starting a new exercise or weight-loss program, especially if you have a health condition.
Estimates use standard MET values. Actual burn varies with fitness, intensity and body composition.
This calories burned calculator estimates how much energy you use during exercise. Choose an activity, enter your body weight, and set how many minutes you were active. The tool applies the activity MET value (a standard measure of effort) to your weight and time, then shows the estimated calories burned, the burn rate per minute, and the MET value used. It is handy for planning workouts, tracking a calorie deficit, or simply seeing how different activities compare.
What is the Calories Burned Calculator?
MET stands for Metabolic Equivalent of Task. One MET is the energy you burn sitting quietly at rest, roughly 1 kilocalorie per kilogram of body weight per hour. An activity rated at 7 METs means it uses about seven times the energy of resting. MET values come from compendiums of physical activity that researchers have measured across thousands of people, which is why the same numbers (walking around 3.5, running around 9.8, cycling around 7.5) appear in fitness apps and calculators everywhere.
The calculator turns METs into calories with a simple, widely used formula: calories = MET times 3.5 times weight in kilograms divided by 200, multiplied by the minutes you exercised. The 3.5 figure is the resting oxygen uptake in millilitres per kilogram per minute, and dividing by 200 converts oxygen use into kilocalories. Heavier people burn more for the same activity because they move more mass, and longer sessions burn proportionally more, which is exactly what the formula captures.
It is important to treat the number as an estimate, not a precise reading. MET tables describe an average person, but your actual burn shifts with intensity (a brisk walk is not a stroll), fitness (a trained athlete is more efficient), and individual factors like age, sex and muscle mass. The figure here is a solid planning tool and a fair way to compare activities, but a chest-strap heart-rate monitor or lab test will give a more personal number.
When to use it
- Planning a workout to hit a daily or weekly calorie-burn target.
- Comparing activities, for example seeing how 30 minutes of running stacks up against 30 minutes of cycling.
- Estimating the exercise side of a calorie deficit when trying to lose or maintain weight.
- Logging energy expenditure when an app or fitness tracker is not available.
How to use the Calories Burned Calculator
- Pick the activity that best matches what you did from the dropdown.
- Enter your body weight and choose kilograms or pounds.
- Enter how many minutes you spent doing the activity.
- Read off the estimated calories burned, the per-minute rate, and the MET value used.
Formula & method
Worked examples
A 70 kg person runs (MET 9.8) for 30 minutes.
- MET × 3.5 = 9.8 × 3.5 = 34.3
- 34.3 × weight = 34.3 × 70 = 2,401
- 2,401 ÷ 200 = 12.005 kcal per minute
- 12.005 × 30 minutes = 360.15
Result: About 360 kcal burned, roughly 12.0 kcal per minute.
An 80 kg person walks (MET 3.5) for 45 minutes.
- MET × 3.5 = 3.5 × 3.5 = 12.25
- 12.25 × weight = 12.25 × 80 = 980
- 980 ÷ 200 = 4.9 kcal per minute
- 4.9 × 45 minutes = 220.5
Result: About 221 kcal burned, roughly 4.9 kcal per minute.
Approximate MET values for common activities (general intensity)
| Activity | MET value |
|---|---|
| Yoga (hatha) | 2.5 |
| Walking (3.0 mph) | 3.5 |
| Dancing (general) | 4.8 |
| Weight training | 5.0 |
| Hiking (cross country) | 6.0 |
| Swimming (general) | 7.0 |
| Cycling (moderate) | 7.5 |
| Climbing stairs | 8.8 |
| Running (6 mph) | 9.8 |
| Jumping rope | 11.0 |
Estimated calories burned in 30 minutes for a 70 kg person
| Activity | MET value | Calories (30 min) |
|---|---|---|
| Yoga (hatha) | 2.5 | ≈ 92 kcal |
| Walking (3.0 mph) | 3.5 | ≈ 129 kcal |
| Swimming (general) | 7.0 | ≈ 257 kcal |
| Cycling (moderate) | 7.5 | ≈ 276 kcal |
| Running (6 mph) | 9.8 | ≈ 360 kcal |
Common mistakes to avoid
- Treating the estimate as an exact measurement. MET values describe an average person at a typical intensity. Your real burn can differ by 20 percent or more depending on effort, fitness and body composition, so use the number as a guide, not a precise reading.
- Picking the wrong intensity level. A leisurely walk and a power walk have very different MET values, as do light and vigorous cycling. Choosing an activity that does not match how hard you actually worked is the biggest source of error.
- Forgetting to subtract resting calories. The MET formula counts total energy used during the activity, including the calories you would have burned at rest anyway. For a strict net figure you would subtract roughly one MET worth, though most people use the gross number.
- Over-eating to replace burned calories. It is easy to undo a workout by treating the calorie burn as a license to eat more. If weight loss is the goal, remember the deficit only works if you do not fully eat the burned calories back.
Glossary
- MET
- Metabolic Equivalent of Task, a ratio comparing an activity energy cost to resting. One MET is the energy used sitting quietly.
- Kilocalorie (kcal)
- The unit commonly called a calorie on food labels. It is the energy needed to raise one kilogram of water by one degree Celsius.
- Calorie deficit
- Burning more energy than you consume, which over time leads to weight loss.
- Basal metabolic rate
- The energy your body uses at complete rest to keep basic functions running, separate from exercise.
- Intensity
- How hard you work during an activity, which raises or lowers its effective MET value.
Frequently asked questions
How does the calories burned calculator work?
It uses the MET formula: calories = MET times 3.5 times your weight in kilograms divided by 200, multiplied by the minutes you exercised. The MET value reflects how hard the activity is compared with resting, so a higher MET and a longer session both raise the calories burned.
What is a MET value?
A MET, or Metabolic Equivalent of Task, measures an activity energy cost relative to sitting still. One MET equals resting energy use, so a 7 MET activity burns about seven times as much energy as rest. Researchers have measured MET values for hundreds of activities.
Is the calorie estimate accurate?
It is a reasonable estimate for an average adult, but not exact. Your true burn depends on fitness, intensity, age, sex and body composition, so the figure can vary by 20 percent or more. Use it to compare activities and plan, and a heart-rate monitor for a more personal number.
Does body weight affect calories burned?
Yes. A heavier person moves more mass and so burns more calories doing the same activity for the same time. That is why weight is part of the formula, and why the calculator asks for it before estimating your burn.
Why do running and walking differ so much?
Running has a much higher MET value (around 9.8) than walking (around 3.5) because it demands far more energy per minute. For the same person and duration, running can burn roughly two to three times the calories of a steady walk.
Can I use this to lose weight?
It can help you plan the exercise side of a calorie deficit, since losing weight means burning more energy than you take in. The estimate is only one half of the picture though, so pair it with mindful eating and, if you have health concerns, advice from a professional.
Sources
- 2011 Compendium of Physical Activities , Medicine & Science in Sports & Exercise (2011)
- Physical Activity for a Healthy Weight , U.S. Centers for Disease Control and Prevention