Mifflin-St Jeor Formula • Maintenance • Weight Loss • Macros

TDEE & Daily Calorie Calculator

Discover your Total Daily Energy Expenditure (TDEE), resting metabolic rate (BMR), and exact calorie targets for fat loss or muscle gain.

Maintenance TDEE2,350 kcal / day

Body Metrics & Routine

years old
cm
kg
Your Energy Breakdown
BMR (Basal Rate)
1,709 kcal
Calories burned at complete rest
TDEE (Daily Total)
2,350 kcal
Calories to maintain current weight

Target Calories By Weight Goal

Mild Fat Loss-0.5 lb (0.25 kg) / week deficit
2,100 kcal
Standard Weight Loss-1.0 lb (0.5 kg) / week recommended
1,850 kcal
Lean Muscle Gain+0.5 lb / week clean bulking
2,600 kcal

Recommended Macro Split (Maintenance)

Protein (30%)176g
Fats (35%)91g
Carbs (35%)206g

Understanding BMR vs. TDEE

Your Basal Metabolic Rate (BMR) is the baseline energy expenditure required to sustain vital organ functions (brain activity, breathing, circulation, cellular repair) while staying completely stationary in bed. Your Total Daily Energy Expenditure (TDEE) combines your BMR with daily steps, occupational activity, physical exercise, and the thermic effect of food digestion.

To Lose Fat

Consume 300 to 500 calories below your TDEE daily. A 500 kcal daily deficit equals approximately 3,500 kcal per week — roughly one pound of body fat.

To Build Muscle

Combine progressive resistance weight training with a modest 250 to 300 calorie daily surplus above your TDEE to fuel hypertrophy while minimizing fat gain.

Frequently Asked Questions

We use the scientifically validated Mifflin-St Jeor equation, widely regarded by registered dietitians and clinical nutritionists as the most accurate standard estimation for basal metabolic rate.

As your weight changes by 5 to 10 pounds (2 to 5 kg) or your weekly exercise frequency shifts, recalculate your TDEE to ensure your daily calorie targets stay aligned with your progress.