How many calories should a 40-year-old female (sedentary) eat to lose weight?
Answer
1,122 calories/day
BMR: 1,351 cal/dayTDEE (Sedentary): 1,622 cal/dayGoal: Lose Weight — TDEE - 500 cal deficit for ~1 lb/week lossBased on 5'5", 150 lbs
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How We Calculated This
BMR = (10 × weight_kg) + (6.25 × height_cm) - (5 × age) - 161
BMR = (10 × 68.0) + (6.25 × 165.1) - (5 × 40) - 161 = 1351. TDEE = 1351 × 1.2 = 1622. Target = 1622 - 500 = 1122
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Calculated using verified formulas. Last updated March 2026.