Calorie Burned Calculator Guide

Whether you're running, lifting weights, or taking a brisk walk, your body uses energy. A Calorie Burned Calculator estimates how much energy you use during a physical activity, which can help you compare activities and understand how exercise fits into your overall energy balance.

This calculator uses Metabolic Equivalent (MET) values to estimate calories burned for 8 common activities, based on your weight and workout duration. It is free, works instantly, and requires no sign-up.

What is a MET? A MET (Metabolic Equivalent of Task) expresses how much energy an activity uses compared with resting quietly. Sitting at rest is 1 MET, and an activity rated 6 METs uses roughly six times as much energy as rest. A common approximation is that 1 MET is about 1 kcal per kilogram of body weight per hour.

How the Calorie Burn is Calculated

The calculator uses three variables:

1. Body Weight

A heavier person generally uses more energy to perform the same activity, so weight scales the result directly.

2. Metabolic Equivalent (MET) Values

Every activity has a MET value representing its intensity. The values below are rounded values taken from the Compendium of Physical Activities. They differ slightly between editions of the Compendium, and the exact value for a given activity depends on speed and effort, so treat the activity names as descriptions of a typical intensity.

Activity	MET Value
Yoga (Hatha)	2.3
Walking (moderate pace)	3.5
Cricket (batting, bowling, fielding)	4.8
Cycling (leisure, about 15 km/h)	5.8
Weight Lifting (vigorous effort)	6.0
Swimming (leisure)	6.0
Running (about 8 km/h)	8.3
Football / Soccer (competitive match)	9.5

3. Duration of Activity

The time spent on the activity completes the calculation. The calculator multiplies MET × weight × duration (converted to hours) to estimate your total calorie burn.

The Calorie Burn Formula

Calories Burned = (MET × Weight in kg × Duration in minutes) ÷ 60

This gives your total (gross) energy use during the activity, which includes the energy your body would have used at rest over the same time (about 1 MET × weight × hours). For example, 30 minutes at 70 kg includes roughly 35 kcal of resting energy. If you only want the extra calories attributable to the activity, subtract that resting amount.

How to Use This Calculator:

Choose your activity from the 8 options in the dropdown.
Enter your weight in kilograms (25 to 500).
Enter the duration in minutes (up to 1,440).
Read the result. It updates as you type.

Units Note: This calculator accepts weight in kilograms and duration in minutes only. If you know your weight in pounds, convert it first by dividing by 2.205.

Tip: Exercise is only one part of energy balance. Use this calculator to compare activities, and treat the figures as rough estimates rather than targets.

Worked Examples (70 kg, 30 Minutes)

Activity	MET	Estimated Calories Burned
Yoga (Hatha)	2.3	81 kcal
Walking (moderate pace)	3.5	123 kcal
Cricket	4.8	168 kcal
Cycling (leisure)	5.8	203 kcal
Weight Lifting (vigorous)	6.0	210 kcal
Swimming (leisure)	6.0	210 kcal
Running (about 8 km/h)	8.3	291 kcal
Football / Soccer (competitive)	9.5	333 kcal

Calculated with this calculator's formula and rounded to the nearest whole kcal.

Hydration Note: High-intensity activities often lead to significant sweat loss. Staying hydrated during and after exercise supports recovery and performance.

Factors That Affect Calorie Burn

Two people doing the same activity for the same time can burn different amounts. Factors include:

Body weight and composition: a heavier body generally uses more energy for the same movement.
Intensity and pace: running faster or cycling harder raises the MET value above the typical figure used here.
Fitness level and technique: a more efficient mover can use less energy for the same activity.
Conditions: terrain, incline, wind and temperature change the energy cost.
Age and sex: these influence metabolism, but they are not part of the MET formula used here.

Common Mistakes to Avoid

1. Treating MET Values as Exact for Everyone

MET values are averages for a typical person doing the activity. Your own figure can be noticeably higher or lower.

2. Entering the Wrong Duration

Calories burned scale directly with time, so rounding 20 minutes up to 30 will overstate the result by 50%. Enter your actual active time.

3. Treating Estimates as Exact Figures

This calculator gives a general estimate, not a measured value. Wearable devices or laboratory testing can give more individualized data, although they have their own margins of error.

Medical Disclaimer: The results are estimates based on standardized MET values and are for general information only. Consult a healthcare professional before starting a new or high-intensity exercise program, especially if you have a health condition.

Conclusion

A calorie estimate helps you compare activities and understand roughly how much energy a workout uses. Use the calculator above to try different activities and durations, and keep in mind that the number is an approximation.

Calories Burned: Frequently Asked Questions

Which activity burns the most calories?

It depends on intensity and duration, not just the type of activity. Among the activities in this calculator, competitive football/soccer has the highest MET value (9.5), followed by running at about 8 km/h (8.3). A faster run, or a harder effort in any activity, burns more than the typical figure used here.

Does weight affect calorie burn?

Yes. In the MET formula the result is directly proportional to body weight, so a heavier person burns more calories doing the same activity for the same time. As body weight changes, the estimate for the same workout changes too.

What is the "afterburn effect"?

It is known as EPOC (excess post-exercise oxygen consumption): your body uses some extra energy after exercise as it recovers. For most workouts it is a small part of the total, and this calculator does not include it.

Does the result include the calories I would burn at rest anyway?

Yes. The MET formula gives total energy use during the activity, which includes resting energy. To estimate only the extra calories from the activity, subtract about 1 × weight in kg × hours (for 70 kg and 30 minutes, about 35 kcal).

Can I lose 1 kg of fat by exercising?

A common rule of thumb is that about 7,700 kcal corresponds to 1 kg of body fat, but this is an approximation, and real weight change also depends on food intake, metabolism and other factors. Exercise and diet together determine the result. A healthcare professional can give personalized advice.

How many activities can I choose from?

This calculator offers 8 common activities: Running, Walking, Cycling, Weight Lifting, Swimming, Football/Soccer, Cricket, and Yoga. Each uses a single typical MET value.

Can I enter my weight in pounds?

This calculator accepts kilograms only. Convert pounds to kg by dividing by 2.205 before entering your weight.

Why does the calculator show "--"?

"--" appears when the weight or duration is empty or outside the supported range: weight from 25 to 500 kg, and duration greater than 0 and up to 1,440 minutes (24 hours). A message under the result explains what to fix.

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