BMR and TDEE calculator using the Mifflin-St Jeor equation. Set weight loss, muscle gain, or maintenance goals and get your personalized macro split. | No signup · All local processing
Clinical Formula · Works Offline• BMR = Basal Metabolic Rate — calories burned at complete rest.
• TDEE = BMR × Activity Multiplier — total daily energy expenditure.
• Weight Loss = TDEE - 20%, Muscle Gain = TDEE + 20%.
• Macros split: 50% carbs / 25% protein / 25% fat.
The Mifflin-St Jeor equation is the most accurate BMR formula, recommended by the Academy of Nutrition and Dietetics. It has lower error than Harris-Benedict.