Bodyweight Calories Per Hour Calculator

By on Wednesday, August 12, 2026

This calculator estimates how many calories you burn per hour during gentle, low-impact activities like walking, cycling, yoga, and light stretching. Instead of guessing, it uses your body weight, the activity you choose, and the intensity level to give you a realistic hourly burn figure.

Whether you're planning a daily walking routine, comparing a gentle yoga class to a leisurely bike ride, or just curious about your energy expenditure, this tool gives you a clear, science-based estimate. It's built around the MET (Metabolic Equivalent of Task) system, which is the standard method used in exercise physiology and nutrition research.

Simply enter your weight, pick an activity, choose an intensity, and hit Calculate. You'll see your calories per hour, plus a breakdown of the math behind the estimate.

⚙️ Bodyweight Calories Per Hour

Your estimated burn: — kcal/hour

How to Use This Tool

Enter your body weight in kilograms or pounds, select an activity from the dropdown, and choose an intensity level that matches how you actually feel during the session. The calculator uses the MET (Metabolic Equivalent of Task) system, which is the standard way exercise scientists express the energy cost of physical activities.

For the most accurate estimate, be honest about your intensity. A gentle stroll is different from a brisk power walk, and a restorative yoga class is different from a vigorous vinyasa flow. If you're not sure, start with the 'Light' option and adjust upward if you feel you're working harder.

You can also use the quick-fill buttons to instantly set common weights, which is handy if you're comparing different scenarios or just want a fast estimate.

How It Works

The calculation is based on the formula:

Calories per hour = MET × body weight (kg) × 1 hour

MET stands for Metabolic Equivalent of Task. One MET is the energy you burn at rest, roughly 1 kcal per kilogram of body weight per hour. When you exercise, your body burns multiple times that resting rate. For example, walking at a moderate pace has a MET of about 3.5, meaning you burn 3.5 times more energy than at rest.

The MET values used here are drawn from the Compendium of Physical Activities, a widely cited research resource maintained by Arizona State University and the National Cancer Institute. The values are averages for adults and can vary based on fitness level, terrain, and individual metabolism.

Worked Examples

Example 1: A 70 kg person does gentle yoga (MET 2.0) for one hour.
Calories = 2.0 × 70 = 140 kcal

Example 2: A 150 lb person (about 68 kg) goes for a moderate bike ride (MET 6.0).
Calories = 6.0 × 68 = 408 kcal

Example 3: A 60 kg person does light stretching (MET 2.0).
Calories = 2.0 × 60 = 120 kcal

Tips & Best Practices

  • Use your current weight, not your goal weight, for the most accurate estimate.
  • If you're doing an activity for less than an hour, divide the result proportionally. For example, 30 minutes of moderate walking for a 70 kg person would be about 122 kcal (half of 245).
  • Remember that these are estimates. Individual factors like age, gender, muscle mass, and fitness level can shift the actual number by 10–20%.
  • For weight management, focus on consistency rather than obsessing over exact numbers. A daily 30-minute walk can add up to significant weekly calorie expenditure.

Common Mistakes to Avoid

  • Using your weight in pounds without converting to kilograms. The formula requires kilograms, but this calculator handles the conversion for you.
  • Choosing 'Vigorous' for an activity you're actually doing at a gentle pace. This can overestimate your burn by 50% or more.
  • Forgetting that MET values assume continuous activity. If you take frequent breaks, your actual burn will be lower.

Frequently Asked Questions

How accurate is this calculator?

It's a solid estimate based on established MET values, but it's not a medical measurement. For most people, it will be within 10–20% of the true value. For precise tracking, consider a heart rate monitor or a fitness tracker that accounts for your personal data.

Can I use this for weight loss planning?

Yes, but remember that weight loss depends on total daily energy balance, not just exercise. Use this to estimate the exercise side of the equation, and combine it with a healthy diet. A deficit of about 500 kcal per day typically leads to about 0.5 kg (1 lb) of weight loss per week.

Why do different calculators give different numbers?

Different tools may use different MET values, different formulas, or include additional factors like age and gender. This calculator uses the standard MET × weight formula, which is the most common and transparent approach.

What about activities not listed here?

If your activity isn't in the list, you can look up its MET value in the Compendium of Physical Activities and use the same formula manually. For example, if an activity has a MET of 4.5 and you weigh 70 kg, you'd burn about 315 kcal per hour.

Additional Resources

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