What is the BMR for a 47-year-old woman?

The estimated BMR (basal metabolic rate) for a 47-year-old woman of average height and weight is 1356 kcal/day, calculated using the Mifflin-St Jeor equation.

Calorie Guide · Age 47

Calories for a 47-Year-Old Woman

Q: How many calories does a 47-year-old woman need?

A lightly active 47-year-old woman of average weight and height needs approximately 1865 kcal/day to maintain weight. Sedentary needs are around 1627 kcal, and very active around 2339 kcal.

Q: How many calories should a 47-year-old woman eat to lose weight?

A 47-year-old woman should eat approximately 1365 kcal/day to lose about 0.5 kg (1 lb) per week. This is a 500 kcal deficit from the estimated maintenance of 1865 kcal.

BMR, TDEE and exact calorie targets for weight loss, maintenance and muscle gain at age 47.

Calorie Needs at Age 47 — Average Woman

1356

BMR (at rest)

1627

Sedentary TDEE

1865
Lightly active TDEE

2102

Moderately active

1365

Weight loss target

1865

Maintenance

2165

Muscle gain target

How Many Calories Does a 47-Year-Old Woman Need?

Using the Mifflin-St Jeor equation with average US height and weight for a woman aged 47, the resting metabolic rate (BMR) is approximately 1356 kcal/day. With typical daily activity included, total calorie expenditure (TDEE) ranges from 1627 kcal (sedentary) to 2339 kcal (very active).

Age 47 note: After 40, muscle loss (sarcopenia) accelerates if untrained. Strength training 2–3×/week and higher protein intake (1 g/lb) are the most effective countermeasures.

Calorie Targets by Goal

Goal	Daily Calories	Expected Result
🔵 Aggressive weight loss	1115 kcal	~0.75 kg/week
📉 Weight loss	1365 kcal	~0.5 kg/week
✅ Maintenance	1865 kcal	Weight stable
💪 Lean bulk	2165 kcal	~0.25 kg/week
🏋️ Aggressive bulk	2365 kcal	~0.5 kg/week

Calorie Needs by Activity Level

Activity Level	Description	Daily Calories
Sedentary	Desk job, minimal movement	1627 kcal
Lightly active	1–3 workouts/week	1865 kcal
Moderately active	3–5 workouts/week	2102 kcal
Very active	Hard training 6–7 days/week	2339 kcal

How Metabolism Changes Around Age 47

Metabolic rate declines approximately 1–2% per decade after age 30, driven primarily by muscle loss (sarcopenia) rather than any inherent slowdown. At age 47, your BMR of 1356 kcal reflects your current muscle mass, height and hormonal status. The single most effective way to maintain or raise your BMR is resistance training — each kilogram of lean muscle burns roughly 13 kcal/day at rest.

Age	Estimated BMR (woman)	Change vs age 47
37	1406 kcal	+50 kcal
42	1381 kcal	+25 kcal
47	1356 kcal	—
52	1331 kcal	-25 kcal
57	1306 kcal	-50 kcal

Macronutrient Split at 1865 kcal

Macro	% of Calories	Grams/day	Calories
Protein	30%	140 g	560 kcal
Carbohydrates	40%	186 g	744 kcal
Fat	30%	62 g	558 kcal

At age 47, protein intake is especially important. Aim for at least 60–74 g/day to maintain muscle mass, whether you're in a deficit, at maintenance, or in a surplus.

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Frequently Asked Questions

How many calories does a 47-year-old woman need per day?A lightly active 47-year-old woman of average size needs approximately 1865 kcal/day to maintain weight. This ranges from 1627 kcal (sedentary) to 2339 kcal (very active).

How many calories should a 47-year-old woman eat to lose weight?Aim for 1365 kcal/day — a 500 kcal deficit from the 1865 kcal maintenance estimate — to lose approximately 0.5 kg per week. Never go below 1200 kcal (women) or 1500 kcal (men) for extended periods.

Does age 47 affect how many calories you burn?Yes. Every decade after 30, BMR drops ~1–2% mainly due to muscle loss. At age 47 the estimated BMR is 1356 kcal — compare to 1441 kcal at age 30. Resistance training largely offsets this decline.

Related Age Guides

Sources

WHO CDC Mifflin-St Jeor (PubMed)