What is the BMR for a 63-year-old woman?

The estimated BMR (basal metabolic rate) for a 63-year-old woman of average height and weight is 1276 kcal/day, calculated using the Mifflin-St Jeor equation.

Calorie Guide · Age 63

Calories for a 63-Year-Old Woman

Q: How many calories does a 63-year-old woman need?

A lightly active 63-year-old woman of average weight and height needs approximately 1755 kcal/day to maintain weight. Sedentary needs are around 1531 kcal, and very active around 2201 kcal.

Q: How many calories should a 63-year-old woman eat to lose weight?

A 63-year-old woman should eat approximately 1255 kcal/day to lose about 0.5 kg (1 lb) per week. This is a 500 kcal deficit from the estimated maintenance of 1755 kcal.

BMR, TDEE and exact calorie targets for weight loss, maintenance and muscle gain at age 63.

Calorie Needs at Age 63 — Average Woman

1276

BMR (at rest)

1531

Sedentary TDEE

1755
Lightly active TDEE

1978

Moderately active

1255

Weight loss target

1755

Maintenance

2055

Muscle gain target

How Many Calories Does a 63-Year-Old Woman Need?

Using the Mifflin-St Jeor equation with average US height and weight for a woman aged 63, the resting metabolic rate (BMR) is approximately 1276 kcal/day. With typical daily activity included, total calorie expenditure (TDEE) ranges from 1531 kcal (sedentary) to 2201 kcal (very active).

Age 63 note: Hormonal changes in your fifties reduce metabolic rate and shift fat distribution. Consistent exercise and sleep quality become increasingly important for weight management.

Calorie Targets by Goal

Goal	Daily Calories	Expected Result
🔵 Aggressive weight loss	1005 kcal	~0.75 kg/week
📉 Weight loss	1255 kcal	~0.5 kg/week
✅ Maintenance	1755 kcal	Weight stable
💪 Lean bulk	2055 kcal	~0.25 kg/week
🏋️ Aggressive bulk	2255 kcal	~0.5 kg/week

Calorie Needs by Activity Level

Activity Level	Description	Daily Calories
Sedentary	Desk job, minimal movement	1531 kcal
Lightly active	1–3 workouts/week	1755 kcal
Moderately active	3–5 workouts/week	1978 kcal
Very active	Hard training 6–7 days/week	2201 kcal

How Metabolism Changes Around Age 63

Metabolic rate declines approximately 1–2% per decade after age 30, driven primarily by muscle loss (sarcopenia) rather than any inherent slowdown. At age 63, your BMR of 1276 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 63
53	1326 kcal	+50 kcal
58	1301 kcal	+25 kcal
63	1276 kcal	—
68	1251 kcal	-25 kcal
70	1241 kcal	-35 kcal

Macronutrient Split at 1755 kcal

Macro	% of Calories	Grams/day	Calories
Protein	30%	132 g	528 kcal
Carbohydrates	40%	176 g	704 kcal
Fat	30%	58 g	522 kcal

At age 63, 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.

Get personalized calorie targets based on your exact weight, height and activity level.

Calculate My TDEE →

Frequently Asked Questions

How many calories does a 63-year-old woman need per day?A lightly active 63-year-old woman of average size needs approximately 1755 kcal/day to maintain weight. This ranges from 1531 kcal (sedentary) to 2201 kcal (very active).

How many calories should a 63-year-old woman eat to lose weight?Aim for 1255 kcal/day — a 500 kcal deficit from the 1755 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 63 affect how many calories you burn?Yes. Every decade after 30, BMR drops ~1–2% mainly due to muscle loss. At age 63 the estimated BMR is 1276 kcal — compare to 1441 kcal at age 30. Resistance training largely offsets this decline.

Related Age Guides

Sources

WHO CDC Mifflin-St Jeor (PubMed)