These values are estimates based on the Mifflin-St Jeor equation, which is widely regarded as the most accurate formula for most people. Individual results may vary. Consult a healthcare professional before making significant dietary changes.
How accurate is the Mifflin-St Jeor formula? — The Mifflin-St Jeor equation is considered the most accurate BMR formula for most people. It typically estimates within 10% of actual metabolic rate. For very muscular or obese individuals, the Katch-McArdle formula may be more accurate.
What is the difference between BMR and TDEE? — BMR (Basal Metabolic Rate) is the calories your body burns at complete rest. TDEE (Total Daily Energy Expenditure) multiplies BMR by your activity level to estimate total daily calorie burn.
Should I eat at a calorie deficit to lose weight? — A moderate deficit of 300-500 calories below your TDEE is generally recommended for sustainable weight loss. Larger deficits can lead to muscle loss and metabolic adaptation.
Can I use this for keto or other specific diets? — This calculator provides total calorie estimates. For keto, you would adjust the macro ratios (higher fat, lower carb) while keeping total calories near your TDEE.