TDEE for a 40-Year-Old Woman, 150 lbs

BMR and TDEE estimates for a 40-year-old woman, 5'5" tall, weighing 150 lbs, using the Mifflin-St Jeor equation.

Basal metabolic rate

1,351 kcal/day

What the body burns at complete rest, before any movement.

TDEE by activity level

Activity	TDEE (kcal/day)
Sedentary (desk job, no exercise)	1,622
Light (1-3 workouts/week)	1,858
Moderate (3-5 workouts/week)	2,094
Active (6-7 workouts/week)	2,331
Athlete (2x/day or physical job)	2,567

Calorie targets at moderate activity

Fat loss (-20%): ~1,675 kcal/day
Maintenance: ~2,094 kcal/day
Lean muscle gain (+10%): ~2,303 kcal/day

These are starting points. Eat at the target for 14 days, average your daily weight, and adjust by 100-150 kcal in the direction the scale needs to move.

How this is calculated

BMR uses the Mifflin-St Jeor equation, the modern standard for adults: 10 × weight (kg) + 6.25 × height (cm) − 5 × age + s, where s is +5 for men and −161 for women. TDEE multiplies BMR by an activity factor between 1.2 (sedentary) and 1.9 (athlete). For a personalized result, use the TDEE calculator.

TDEE for a 40-Year-Old Woman, 150 lbs

TDEE by activity level

Calorie targets at moderate activity

How this is calculated

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