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Calories Burned Formula:
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Calories Burned Per Day represents the total energy expenditure in a day, calculated as the sum of Basal Metabolic Rate (BMR) and calories burned through physical activity. It provides an estimate of how many calories your body uses daily.
The calculator uses the formula:
Where:
Explanation: BMR represents the calories your body needs at rest to maintain basic physiological functions, while activity calories account for energy expended through movement and exercise.
Details: Understanding your daily calorie expenditure is crucial for weight management, creating effective diet plans, and optimizing fitness routines. It helps in maintaining energy balance for health and performance goals.
Tips: Enter your BMR in kcal and activity calories in kcal. Both values must be non-negative numbers. For accurate results, use measured or calculated BMR values rather than estimates.
Q1: What is BMR and how is it different from TDEE?
A: BMR (Basal Metabolic Rate) is the calories burned at complete rest, while TDEE (Total Daily Energy Expenditure) includes all activities. This calculator helps determine TDEE by adding activity calories to BMR.
Q2: How can I accurately measure my BMR?
A: The most accurate method is indirect calorimetry, but you can also use established formulas like Mifflin-St Jeor or Harris-Benedict equations with accurate body measurements.
Q3: What factors affect daily calorie expenditure?
A: Age, gender, weight, height, body composition, genetics, and activity level all influence how many calories you burn daily.
Q4: How often should I recalculate my calorie needs?
A: Recalculate whenever your weight changes significantly (±5kg/10lbs), activity level changes, or every 3-6 months to account for metabolic adaptations.
Q5: Can this calculator help with weight loss goals?
A: Yes, knowing your total daily calorie expenditure helps create an appropriate calorie deficit for safe and effective weight loss (typically 300-500 calories less than expenditure).