How accurate is MET-based calorie calculation?

MET-based calculations provide a reasonable estimate but have limitations. They do not account for individual fitness level, body composition, terrain, or environmental conditions. Studies show MET estimates can be off by 20-30% for individuals. Use the result as a guide rather than an exact figure, and avoid eating back all calculated exercise calories.

Does fitness level affect calories burned?

Yes — a fitter person is more efficient at the same exercise, often burning slightly fewer calories than a less fit person at the same speed or intensity. However, fitter people can sustain higher intensities for longer, resulting in greater total calorie burn per session. MET values represent averages across the population.

Do I need a calorie deficit to lose weight?

Yes. Weight loss requires burning more calories than you consume. Exercise contributes to the deficit, but diet typically has a larger impact — it is much easier to eat 500 kcal less than to burn 500 kcal through exercise. Combining a moderate calorie reduction with regular exercise is the most effective and sustainable approach.

How many calories should I burn per day through exercise?

The WHO recommends 150-300 minutes of moderate intensity or 75-150 minutes of vigorous intensity activity per week for adults. This translates to roughly 200-600 kcal burned per exercise session for a 70 kg person, depending on intensity and duration. For weight loss, a combined calorie deficit of 500-1000 kcal/day is typically targeted.

Health

Calories Burned Calculator

Calculate calories burned during exercise using MET values. Covers 18 activities with light, moderate, and vigorous intensity options.

✏️

Enter Values

Body Weight*

Weight Unit

Exercise Type

Duration(minutes)*

Intensity

📊

Results

Enter values above to see results

Calories = MET × Weight (kg) × Duration (hours)

Variables

METMetabolic Equivalent of Task — energy cost relative to rest

WeightBody weight in kilograms

DurationExercise time in hours

Intensity multiplierLight 0.7x, Moderate 1.0x, Vigorous 1.3x

Explanation

The MET (Metabolic Equivalent of Task) formula is the scientific standard for estimating energy expenditure during physical activity. A MET of 1 equals the energy used at rest. An activity with a MET of 8 burns approximately 8x the calories of resting. Results are adjusted by an intensity multiplier.

What is the Calories Burned Calculator?

Understanding how many calories you burn during exercise helps you make informed decisions about your workout routine and nutrition. Whether your goal is weight loss, cardiovascular health, or athletic performance, knowing your calorie expenditure provides valuable data for planning and tracking progress.

How to Use This Calculator

Enter your weight, choose an exercise and duration, and select your intensity level. The calculator applies the MET (Metabolic Equivalent of Task) formula — the scientific standard for estimating exercise energy expenditure — adjusted for your intensity choice.

Worked Examples

30 minutes of running at 70 kg

Running at ~6 mph has a MET of about 10; the formula is MET × weight(kg) × hours.

10 MET × 70 kg × 0.5 h: 350 kcal
Burn rate: ≈ 11.7 kcal/min

About 350 kcal — roughly one slice of pizza.

MET-based estimates are ±15–20%; a heart-rate monitor personalises it but still isn't lab-accurate.

An hour of brisk walking at 70 kg

Walking at 3.5 mph is about 3.5 MET.

3.5 MET × 70 kg × 1 h: 245 kcal

About 245 kcal for the hour.

Why Use MyCalculatorsHub's Calories Burned Calculator?

This calculator covers 18 common exercises with intensity adjustment, giving you flexibility to match your actual workout. The food equivalent helps contextualize the calorie burn in a relatable way, while the WHO recommendation provides a benchmark for weekly activity goals.

Common Mistakes to Avoid

A common mistake is eating back 100% of exercise calories, especially if weight loss is the goal. Exercise calorie estimates can be inaccurate, and many fitness trackers overestimate burn by 20-50%. Also, do not neglect non-exercise activity (walking, standing, fidgeting) — this NEAT (Non-Exercise Activity Thermogenesis) often accounts for more daily calories than formal workouts.