Calorie Burn Calculator
Calculate calories burned during any workout — add multiple activities to build a complete session, enter your body weight, and instantly see total calories burned, average burn rate, food equivalents, and a weekly projection. Uses the scientifically validated MET formula with 40+ activities. Supports metric and imperial units. Free, private, and no signup required.
Enter your body weight, add one or more activities with durations, and instantly calculate total calories burned for the entire session. Uses the scientifically validated MET formula with 40+ activities. All calculations run locally in your browser — no data is sent to any server.
Your current body weight
Activities
Formula:
Calories (kcal) = MET × Weight (kg) × Duration (hours)
MET values from the Compendium of Physical Activities (Ainsworth et al., 2011). Results are estimates — actual burn varies with age, fitness level, and metabolism. All calculations run locally in your browser.
Why Use Our Calorie Burn Calculator?
Multi-Activity Session Builder
Our calorie burn calculator lets you add multiple activities in a single session — combine a warm-up walk, a run, and a cool-down stretch to get the total calories burned for the entire workout. Each activity shows its individual calorie contribution and intensity level.
Food Equivalents & Weekly Projection
See your calorie burn translated into food equivalents — how many apples, slices of pizza, or chocolate bars you burned off. A weekly projection table shows your expected calorie burn at 2–7 sessions per week, helping you plan your fitness routine.
Completely Private & Secure
All calorie burn calculations happen locally in your browser. Your body weight, activity data, and health information are never sent to any server — 100% private when you use our calorie burn calculator online.
No Installation Required
Use our free calorie burn calculator directly in your browser — no downloads, no plugins, no account needed. Supports metric (kg) and imperial (lbs) units with 40+ activities from the Compendium of Physical Activities.
Common Use Cases for Calorie Burn Calculator
Tracking Workout Calorie Burn
Runners, cyclists, and gym-goers use the calorie burn calculator to estimate how many calories they burned during a workout. The multi-activity session builder lets you log a warm-up, main workout, and cool-down in one calculation.
Weight Loss Planning
People on a weight loss journey use the calorie burn calculator to understand how exercise contributes to their calorie deficit. The weekly projection table shows how many calories you can burn per week at different training frequencies.
Balancing Food and Exercise
Health-conscious individuals use the food equivalents feature to understand their calorie burn in relatable terms — for example, a 30-minute run burns the equivalent of 3 apples or 1 slice of pizza. This makes calorie balance more intuitive.
Comparing Activity Intensities
Fitness enthusiasts use the calorie burn calculator to compare how many calories different activities burn in the same time. The intensity label (Light, Moderate, Vigorous, Very Vigorous) helps choose activities that match fitness goals.
Sports & Competition Preparation
Athletes preparing for competitions use the calorie burn calculator to estimate energy expenditure during training sessions. Knowing the calorie burn helps plan nutrition and recovery to support performance.
General Health & Activity Monitoring
People tracking their daily activity use the calorie burn calculator to estimate energy expenditure from everyday tasks like cleaning, gardening, and walking. The calculator covers 40+ activities including daily life activities.
Understanding Calorie Burn Calculation
What is a Calorie Burn Calculator?
A calorie burn calculator estimates the number of kilocalories (kcal) your body expends during physical activity. It uses the MET (Metabolic Equivalent of Task) formula — the gold standard method used by exercise scientists and health researchers worldwide. MET values represent the energy cost of an activity relative to resting metabolic rate: a MET of 1 equals resting, while a MET of 10 (e.g. soccer) means the activity burns 10 times more energy than rest. Our browser-based calorie burn calculator supports multi-activity sessions, food equivalents, and weekly projections — all running locally in your browser.
How Our Calorie Burn Calculator Works
- Enter Your Body Weight: Input your weight in kg or lbs. Body weight is a key variable in the MET formula — heavier individuals burn more calories for the same activity and duration.
- Add Activities: Select one or more activities from 40+ options and enter the duration in minutes for each. Use the Add Activity button to build a multi-activity session — for example, a 10-minute warm-up walk + 30-minute run + 10-minute cool-down stretch.
- Instant Browser-Based Calculation: Click Calculate Calories. The calorie burn calculator applies the MET formula for each activity entirely in your browser — your health data is never sent to any server.
What the Calorie Burn Calculator Shows
- Total Calories Burned: The sum of calories burned across all activities in the session, calculated as MET × Weight (kg) × Duration (hours).
- Average Burn Rate: Total calories divided by total session duration in minutes — useful for comparing workout efficiency.
- Food Equivalents: Your total calorie burn expressed as multiples of common foods — apples, pizza slices, chocolate bars — to make the number more intuitive.
- Weekly Projection: Your session calorie burn multiplied by 2–7 sessions per week, showing expected weekly and monthly calorie expenditure at different training frequencies.
Important Notes
The calorie burn calculator provides estimates based on population-average MET values. Actual calorie burn varies with age, sex, fitness level, body composition, and individual metabolic rate. The MET formula does not account for the afterburn effect (EPOC) — the elevated calorie burn that continues after high-intensity exercise. For weight management, calorie burn from exercise is only one part of the equation — total daily energy expenditure (TDEE) and dietary intake are equally important. Consult a registered dietitian or healthcare professional for personalised nutrition and exercise guidance.
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Frequently Asked Questions About Calorie Burn Calculator
A calorie burn calculator estimates the kilocalories your body burns during physical activity using the MET (Metabolic Equivalent of Task) formula. Our calorie burn calculator supports multi-activity sessions, food calorie equivalents, and weekly burn projections — all running locally in your browser with no signup required.
Calories (kcal) = MET × Body Weight (kg) × Duration (hours). MET is a standardised measure of activity intensity — walking has a MET of 3.5, jogging is 7.0, and running at 16 km/h is 14.5. MET values are sourced from the Compendium of Physical Activities (Ainsworth et al., 2011).
The MET formula provides reliable population-level estimates. Individual results vary based on age, sex, fitness level, body composition, and metabolic rate. The formula does not account for the afterburn effect (EPOC) after high-intensity exercise. For most people, the estimate is within 10–20% of actual calorie burn.
Yes. Use the Add Activity button to build a multi-activity session. For example, add a 10-minute warm-up walk, a 30-minute run, and a 10-minute cool-down stretch. The calorie burn calculator sums the calories for all activities and shows a per-activity breakdown.
The calculator supports 40+ activities including walking, running, cycling, swimming, gym workouts (weights, HIIT, CrossFit), sports (basketball, soccer, tennis), yoga, pilates, and daily activities (cleaning, gardening). All MET values are from the Compendium of Physical Activities.
Heavier individuals burn more calories for the same activity and duration because the MET formula multiplies by body weight. For example, a 90 kg person burns 50% more calories than a 60 kg person doing the same activity for the same duration. This is why body weight is a required input.
The weekly projection table shows your expected calorie burn if you repeat the same session 2–7 times per week. It also shows the monthly equivalent. This helps you plan your training frequency to meet a weekly calorie burn target.
Absolutely. All calorie burn calculations run entirely in your browser. Your body weight, activity data, and health information are never sent to any server, stored in a database, or tracked. Everything stays completely private on your device.
Yes. The calorie burn calculator is 100% free with no signup required, no premium tier, no usage quotas, and no ads blocking the interface. Calculate calories burned for any activity and any weight as many times as you need, directly in your browser.