What is the BMR for a 49-year-old woman?

The estimated BMR (basal metabolic rate) for a 49-year-old woman of average height and weight is 1346 kcal/day, calculated using the Mifflin-St Jeor equation.

Calorie Guide · Age 49

Calories for a 49-Year-Old Woman

Q: How many calories does a 49-year-old woman need?

A lightly active 49-year-old woman of average weight and height needs approximately 1851 kcal/day to maintain weight. Sedentary needs are around 1615 kcal, and very active around 2322 kcal.

Q: How many calories should a 49-year-old woman eat to lose weight?

A 49-year-old woman should eat approximately 1351 kcal/day to lose about 0.5 kg (1 lb) per week. This is a 500 kcal deficit from the estimated maintenance of 1851 kcal.

BMR, TDEE and exact calorie targets for weight loss, maintenance and muscle gain at age 49.

Calorie Needs at Age 49 — Average Woman

1346

BMR (at rest)

1615

Sedentary TDEE

1851
Lightly active TDEE

2086

Moderately active

1351

Weight loss target

1851

Maintenance

2151

Muscle gain target

How Many Calories Does a 49-Year-Old Woman Need?

Using the Mifflin-St Jeor equation with average US height and weight for a woman aged 49, the resting metabolic rate (BMR) is approximately 1346 kcal/day. With typical daily activity included, total calorie expenditure (TDEE) ranges from 1615 kcal (sedentary) to 2322 kcal (very active).

Age 49 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	1101 kcal	~0.75 kg/week
📉 Weight loss	1351 kcal	~0.5 kg/week
✅ Maintenance	1851 kcal	Weight stable
💪 Lean bulk	2151 kcal	~0.25 kg/week
🏋️ Aggressive bulk	2351 kcal	~0.5 kg/week

Calorie Needs by Activity Level

Activity Level	Description	Daily Calories
Sedentary	Desk job, minimal movement	1615 kcal
Lightly active	1–3 workouts/week	1851 kcal
Moderately active	3–5 workouts/week	2086 kcal
Very active	Hard training 6–7 days/week	2322 kcal

How Metabolism Changes Around Age 49

Metabolic rate declines approximately 1–2% per decade after age 30, driven primarily by muscle loss (sarcopenia) rather than any inherent slowdown. At age 49, your BMR of 1346 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 49
39	1396 kcal	+50 kcal
44	1371 kcal	+25 kcal
49	1346 kcal	—
54	1321 kcal	-25 kcal
59	1296 kcal	-50 kcal

Macronutrient Split at 1851 kcal

Macro	% of Calories	Grams/day	Calories
Protein	30%	139 g	556 kcal
Carbohydrates	40%	185 g	740 kcal
Fat	30%	62 g	558 kcal

At age 49, 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 49-year-old woman need per day?A lightly active 49-year-old woman of average size needs approximately 1851 kcal/day to maintain weight. This ranges from 1615 kcal (sedentary) to 2322 kcal (very active).

How many calories should a 49-year-old woman eat to lose weight?Aim for 1351 kcal/day — a 500 kcal deficit from the 1851 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 49 affect how many calories you burn?Yes. Every decade after 30, BMR drops ~1–2% mainly due to muscle loss. At age 49 the estimated BMR is 1346 kcal — compare to 1441 kcal at age 30. Resistance training largely offsets this decline.

Related Age Guides

Sources

WHO CDC Mifflin-St Jeor (PubMed)