Calculated using standard mathematical and industry formulas.
Free online Calories Burned Calculator calculator and unit conversion tool for everyday, engineering, and home projects.
How to use this calculator?
Select your workout or daily activity from the list.
Enter the duration in minutes.
Enter your body weight (heavier individuals burn more calories per activity).
View total estimated calories burned and hourly burn rate.
Formula & calculation method
Compendium of Physical Activities MET Formula
Calories Burned = MET × Weight (kg) × Duration (hours)
1 MET = 1 kcal/kg/hour. MET values sourced from standard exercise physiology tables.
Step-by-step calculation example
Running 6.7 mph (MET 10.5) for 45 min (0.75 hr) at 70 kg → 10.5 × 70 × 0.75 ≈ 551 kcal.
Key insights to remember
Calories burned depend directly on body weight: a 90 kg person burns ~28% more calories than a 70 kg person doing the exact same activity.
MET (Metabolic Equivalent of Task) quantifies energy expenditure relative to resting metabolic rate (1 MET = 1 kcal/kg/hour at rest).
High-intensity running (8.6 mph) has a MET of 14.0, burning over 3 times more calories per minute than moderate walking.
How to interpret your results?
Total Calories Burned
Estimated energy expenditure for the specified duration in kilocalories.
Hourly Burn Rate
Caloric burn rate if the activity were sustained for 60 full minutes.
Frequently asked questions
How do I use the Calories Burned Calculator calculator?
Enter your numerical input and select desired units to get instant accurate results.
How accurate are the conversions?
Conversions use official ISO conversion factors for maximum precision.
Does it convert metric and imperial units?
Yes, seamless conversions between metric (meters, kg) and imperial (feet, lbs) are supported.
Is my data stored?
No, all calculations execute 100% locally in your browser with zero data logging.
Can I use this for DIY or engineering projects?
Yes, it provides reliable estimates for construction, crafting, science, and everyday math.
What if I enter invalid inputs?
The calculator will display a friendly error prompt if non-numeric values are entered.
Related calculators
Calorie Calculator: Daily Maintenance & Loss — Calculate daily calories for weight loss, maintenance, or muscle gain. Uses Mifflin-St Jeor and Harris-Benedict formulas to set safe, healthy calorie targets.
TDEE Calculator: Total Daily Energy Calories — Calculate your Total Daily Energy Expenditure (TDEE) based on your activity level. Find exact calories for weight loss, maintenance, or muscle gain.
Pace Calculator — Calculate running pace per kilometer or mile, average speed, and race finish time projections.