Calories Burned Calculator

Use this free calories burned calculator to estimate how many calories you burn during any workout or physical activity. Enter your body weight, choose an activity, set the duration, and get your estimate in seconds.

The calculator uses MET values from the Compendium of Physical Activities, the standard research database for energy expenditure. Your results are personalized estimates based on the inputs you provide.

Calculate Calories Burned for Different Activities

Different activities require different amounts of energy. A 30 minute jog burns far more calories than 30 minutes of sitting still.

This calculator covers a wide range of physical activities. Running, walking, cycling, swimming, tennis, using the stairs, and dozens more. Select the activity closest to what you did (or plan to do), and the tool handles the math.

You can also compare activities side by side. Wondering whether brisk walking or a bicycle ride burns more? Run both calculations and see the difference.

How the Calorie Burn Calculation Works

The calculator uses a straightforward formula built on three inputs: body weight, activity type, and duration of the activity. Each activity has a MET value, which stands for Metabolic Equivalent of Task.

A MET is roughly the amount of energy you expend per kilogram of body mass per minute relative to rest. Sitting quietly equals about 1 MET. Vigorous running can reach 10 METs or higher.

The core formula:

Calories burned = MET value × body weight in kg × duration in hours

That's the same calculation researchers and fitness professionals use to estimate calories across hundreds of activities.

Calories Burned Based on Body Weight and Duration

Body weight is the single biggest variable in how many calories you burn. A person who weighs more requires more energy to move, so they burn more calories doing the same activity for the same time.

For example, a 90 kg person burns roughly 30% more calories walking than a 70 kilogram person at the same pace and duration. The calculator accounts for this automatically when you enter your weight.

Duration matters just as directly. Double the time, and you roughly double the calorie burn for any steady activity. Enter your actual exercise time for the most useful estimate.

How Exercise Intensity Affects How Many Calories You Burn

Intensity is captured by the MET value assigned to each activity variation. Walking at a casual pace (about 3 mph) has a lower MET than brisk walking (4.5 mph), which has a lower MET than jogging.

Here's a rough comparison for a person who weighs 70 kilograms exercising for 1 hour:

• Walking (3 mph): ~210 calories
• Brisk walking (4.5 mph): ~315 calories
• Jogging (5 mph): ~490 calories
• Running (7 mph): ~700 calories

Moderately intense activities burn less energy per minute than vigorous ones, but they're easier to sustain. The best workout is the one you'll actually do consistently.

Heart Rate and Energy Expenditure

Your heart rate during exercise reflects how hard your body is working. A higher heart rate generally means greater energy expenditure, because your muscles demand more oxygen consumption and fuel.

Does a high heart rate during a workout burn more calories? Yes, in most cases. When your heart rate climbs, it signals that your body is using much energy to power movement, cool itself, and deliver oxygen.

Some calorie burn models use heart rate directly in the formula instead of MET values. These require continuous heart rate monitoring and work best with a chest strap or reliable wrist sensor. Our calculator uses MET values because they don't require a heart rate monitor, making the tool accessible to everyone.

What is a normal resting heart rate? For healthy adults, a resting heart rate typically falls between 60 and 100 beats per minute. More fit individuals often have a lower resting heart rate, sometimes below 60.

Running Calorie Calculator

Running is one of the most efficient ways to burn calories. The number of calories burned while running depends on your pace, body weight, and how long you run.

Pace is often measured in minutes per mile. A faster pace means a higher MET value and more calories burned per minute. Here's what a 70 kg runner might expect per hour:

• 10 min/mile (6 mph): ~600 calories
• 8 min/mile (7.5 mph): ~750 calories
• 7 min/mile (8.5 mph): ~850 calories

Use this calculator to estimate your running calorie burn. Select the running speed closest to your pace, enter your weight and duration, and the tool does the rest.

Running on hills or trails typically burns more than flat road running at the same speed. If your run includes significant elevation, your actual burn may be somewhat higher than the estimate.

Calorie Burn for Walking, Cycling, and Other Physical Activities

Not every workout needs to be intense. Walking, cycling, and other moderate activities still burn a meaningful number of calories, especially over longer durations.

Walking is the most accessible exercise. A brisk 45 minute walk can burn 200 to 350 calories depending on your weight and pace. It's a reliable way to increase daily calorie burn without special equipment.

Cycling ranges widely in intensity. A leisurely bicycle ride at 10 mph burns roughly 280 calories per hour for a 70 kg person. Push to 14 mph and that jumps to about 420.

Other activities the calculator covers:

• Swimming
• Tennis
• Dancing
• Hiking
• Yoga
• Strength training
• Household chores

Each activity has its own MET value in the Compendium of Physical Activities. The calculator matches your selection to the right value automatically.

Daily Calorie Burn and Metabolic Rate at Rest

Your body burns calories even at rest. Breathing, circulating blood, repairing cells: these processes require energy around the clock. This baseline is your basal metabolic rate (BMR), sometimes called resting metabolic rate.

BMR accounts for the largest share of your daily calorie burn, typically 60% to 75%. It's influenced by body mass, age, sex, height, and lean body mass. People with more muscle tend to have a higher metabolic rate because muscle tissue requires more energy to maintain than fat.

Your total daily calorie burn combines three things:

1. Basal metabolic rate (calories burned even sitting still)
2. Physical activity (exercise and movement throughout the day)
3. Thermic effect of food (energy used to digest what you eat)

This calculator estimates the physical activity portion. If you want a full picture of daily calorie needs, pair this tool with a BMR or TDEE calculator that factors in your height and weight, age, and activity levels.

How Many Calories Do You Burn to Lose Weight

Weight loss comes down to energy balance. To lose weight, you need to expend more calories than you consume over time. A common guideline is that a deficit of roughly 3,500 calories corresponds to about one pound of body fat.

That doesn't mean you need to burn 3,500 calories in a single workout. Spread across a week, a daily deficit of 500 calories (through eating less, moving more, or both) adds up to roughly one pound of loss per week.

Use the calculator to see how different activities contribute to that deficit. For example:

• 30 minutes of brisk walking daily ≈ 150 to 250 extra calories burned
• 30 minutes of jogging daily ≈ 300 to 450 extra calories burned

Burning calories through exercise is only one side of the equation. Calories consumed matter equally. If you want to lose weight, tracking both intake and expenditure gives you the clearest picture.

Aiming to maintain a healthy weight or avoid excess weight gain? The same principle applies in reverse. Match your energy intake to your energy requirements based on your activity levels and metabolic rate.

This calculator is a planning aid, not a medical or nutrition prescription. Talk to a healthcare provider before making significant changes to diet or exercise, especially if you have existing health conditions.

Calculate Calories Burned: What This Calorie Calculator Can Estimate

Use this calculator to estimate calories burned for:

• Any single activity from a list of 100+ options
• Any duration from a few minutes to several hours
• Any body weight in pounds or kg

The tool is useful for:

• Comparing two activities to see which helps you burn more calories
• Planning workouts around a calorie target
• Understanding how activity duration and intensity change your burn
• Getting a quick estimate without needing a heart rate monitor or fitness tracker

The calculator uses MET values published in the Compendium of Physical Activities. This is the same dataset used in exercise science research and by major health organizations.

Many Calories You Burn: Why Numbers Are Estimates, Not Exact Expenditure

Every calories burned calculator, including this one, produces estimates. Here's why the number of calories you actually burn may differ from any calculation:

• Individual metabolism varies. Two people with the same weight doing the same activity can burn different amounts due to differences in fitness level, lean body mass, age, and genetics.
• MET values are averages. They come from laboratory studies on groups of people. Your personal MET for a given activity may be higher or lower.
• Conditions change the burn. Heat, cold, altitude, terrain, and even caffeine intake can shift energy expenditure up or down.
• Body adaptation matters. The more you do a specific exercise, the more efficient your body becomes at it, which can mean you burn slightly less energy over time at the same intensity.

Think of your result as a solid planning estimate, not a lab measurement. It's accurate enough to compare activities, track trends, and guide your fitness and health decisions.

For the most precise individual data, clinical methods like indirect calorimetry (measuring oxygen consumption) are available through sports medicine and research facilities. For everyday planning, a MET based calculator like this one gives you a practical, reliable number to work with.