🎓 Biology • Human Biology
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Basal Metabolic Rate & TDEE Calculator
Computes resting metabolic rate (BMR) and Total Daily Energy Expenditure (TDEE) with activity multipliers.
⭐ Real-World Biometric Profiles:
Physiological Input Parameters:
Basal Metabolic Rate (BMR) & Daily Calorie Expenditure (TDEE)
Mifflin-St Jeor equation and Total Daily Energy Expenditure calorie planning
Basal Metabolic Rate (BMR)
1,659 kcal/day
Calories burned at total rest (coma / sleeping state)
Harris-Benedict: 1707 kcal/dayTotal Daily Energy Expenditure (TDEE)
2,281 kcal/day
Total daily maintenance calories (BMR × Activity)
Multiplier: 1.375×Target Calories for Weight Management:
Weight Loss (-0.5kg/wk)1781kcal/day (-500)
Mild Deficit (-0.25kg)2031kcal/day (-250)
Maintenance2281kcal/day (TDEE)
Lean Muscle Bulk2581kcal/day (+300)
Maintenance Macronutrient Distribution (Daily Gram Targets):
Protein (25%)143g4 kcal/g
Carbohydrates (50%)285g4 kcal/g
Healthy Fats (25%)63g9 kcal/g
What is Basal Metabolic Rate?
BMR is the amount of energy (calories) expended while at complete rest in a neutrally temperate environment.
Formula & Step-by-Step Calculation
Mifflin-St Jeor: BMR = 10·weight(kg) + 6.25·height(cm) - 5·age + s
s = +5 for biological males, -161 for biological females.
Worked Step-by-Step Examples
Example 1
28-year-old male, 70 kg, 175 cm
Solution: BMR = 1,659 kcal/day (TDEE ≈ 2,281 kcal with light activity)
• 10(70) + 6.25(175) - 5(28) + 5 = 700 + 1093.75 - 140 + 5 = 1658.75 kcal
Common Real-World & Academic Use Cases
- ✓ Nutritional meal planning and dietetics
- ✓ Athletic calorie intake optimization
- ✓ Metabolic clinical evaluations
How to Use the Basal Metabolic Rate & TDEE Calculator
1
Enter Body Metrics
Input weight, height, age, and sex.
2
Select Activity Level
Choose sedentary, moderate, or active.
3
View Daily Calories
Inspect resting BMR and maintenance TDEE.
Frequently Asked Questions
Q: What is the difference between BMR and TDEE?
BMR is calories burned doing nothing; TDEE includes physical movement and exercise.