What is the BMR for a 37-year-old woman?

The estimated BMR (basal metabolic rate) for a 37-year-old woman of average height and weight is 1406 kcal/day, calculated using the Mifflin-St Jeor equation.

Calorie Guide · Age 37

Calories for a 37-Year-Old Woman

Q: How many calories does a 37-year-old woman need?

A lightly active 37-year-old woman of average weight and height needs approximately 1933 kcal/day to maintain weight. Sedentary needs are around 1687 kcal, and very active around 2426 kcal.

Q: How many calories should a 37-year-old woman eat to lose weight?

A 37-year-old woman should eat approximately 1433 kcal/day to lose about 0.5 kg (1 lb) per week. This is a 500 kcal deficit from the estimated maintenance of 1933 kcal.

BMR, TDEE and exact calorie targets for weight loss, maintenance and muscle gain at age 37.

Calorie Needs at Age 37 — Average Woman

1406

BMR (at rest)

1687

Sedentary TDEE

1933
Lightly active TDEE

2179

Moderately active

1433

Weight loss target

1933

Maintenance

2233

Muscle gain target

How Many Calories Does a 37-Year-Old Woman Need?

Using the Mifflin-St Jeor equation with average US height and weight for a woman aged 37, the resting metabolic rate (BMR) is approximately 1406 kcal/day. With typical daily activity included, total calorie expenditure (TDEE) ranges from 1687 kcal (sedentary) to 2426 kcal (very active).

Age 37 note: Metabolism begins slowing ~1–2% per decade after 30. Maintaining muscle through resistance training and adequate protein (0.7–1 g/lb) offsets most of this decline.

Calorie Targets by Goal

Goal	Daily Calories	Expected Result
🔵 Aggressive weight loss	1183 kcal	~0.75 kg/week
📉 Weight loss	1433 kcal	~0.5 kg/week
✅ Maintenance	1933 kcal	Weight stable
💪 Lean bulk	2233 kcal	~0.25 kg/week
🏋️ Aggressive bulk	2433 kcal	~0.5 kg/week

Calorie Needs by Activity Level

Activity Level	Description	Daily Calories
Sedentary	Desk job, minimal movement	1687 kcal
Lightly active	1–3 workouts/week	1933 kcal
Moderately active	3–5 workouts/week	2179 kcal
Very active	Hard training 6–7 days/week	2426 kcal

How Metabolism Changes Around Age 37

Metabolic rate declines approximately 1–2% per decade after age 30, driven primarily by muscle loss (sarcopenia) rather than any inherent slowdown. At age 37, your BMR of 1406 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 37
27	1456 kcal	+50 kcal
32	1431 kcal	+25 kcal
37	1406 kcal	—
42	1381 kcal	-25 kcal
47	1356 kcal	-50 kcal

Macronutrient Split at 1933 kcal

Macro	% of Calories	Grams/day	Calories
Protein	30%	145 g	580 kcal
Carbohydrates	40%	193 g	772 kcal
Fat	30%	64 g	576 kcal

At age 37, 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 37-year-old woman need per day?A lightly active 37-year-old woman of average size needs approximately 1933 kcal/day to maintain weight. This ranges from 1687 kcal (sedentary) to 2426 kcal (very active).

How many calories should a 37-year-old woman eat to lose weight?Aim for 1433 kcal/day — a 500 kcal deficit from the 1933 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 37 affect how many calories you burn?Yes. Every decade after 30, BMR drops ~1–2% mainly due to muscle loss. At age 37 the estimated BMR is 1406 kcal — compare to 1441 kcal at age 30. Resistance training largely offsets this decline.

Related Age Guides

Sources

WHO CDC Mifflin-St Jeor (PubMed)