Loading Legacy
Units
Sex
Goal
Maintenance Calories (TDEE)
Activity multiplier: ×1.55 · BMR: 1,618 kcal (calories at complete rest)
BMR calculated using the Mifflin-St Jeor equation (2005), widely used in clinical settings. TDEE = BMR × activity multiplier.
Medical disclaimer: This tool provides estimates for general wellness. Consult a registered dietitian or healthcare provider for personalized nutrition advice.
Calorie Calculator (BMR & TDEE) computes your Basal Metabolic Rate using the Mifflin-St Jeor formula and multiplies by an activity factor to give daily TDEE, with personalized targets for weight loss, maintenance, and muscle gain.
Calorie Calculator (BMR & TDEE) is a high-performance utility designed to help users streamline their workflow. Built with modern web technologies, it ensures fast processing times and high-quality outputs directly in your browser.
BMR (Mifflin-St Jeor): men = 10W + 6.25H − 5A + 5; women = 10W + 6.25H − 5A − 161 (W in kg, H in cm, A in years). TDEE = BMR × activity multiplier (1.2 sedentary to 1.9 very active). Weight-loss target = TDEE − 500 kcal/day (≈1 lb/week). Results are estimates; consult a registered dietitian for medical nutrition therapy.
A 500 calorie/day deficit below your TDEE typically produces ~1 lb/week of fat loss. Avoid going below 1,200 kcal (women) or 1,500 kcal (men) without medical supervision.
BMR (Basal Metabolic Rate) is the calories your body burns at complete rest. TDEE (Total Daily Energy Expenditure) is BMR multiplied by an activity factor — the total calories you burn in a day.
Mifflin-St Jeor (2005) is considered most accurate for most adults, validated in multiple studies. Harris-Benedict (1919) is older and slightly overestimates for sedentary people.
TDEE estimates are typically within ±10–15% of actual values. Individual variation in metabolism, muscle mass, and daily activity means results are starting points — adjust based on real-world results over 2–4 weeks.
Calculate your daily protein, carbs, and fat targets by goal and diet style.
Free BMI calculator with metric and US units, WHO-based adult categories, and clear medical disclaimers.
Find your ideal body weight using 4 medical formulas — Robinson, Miller, Devine, and Hamwi.