What is the BMR for a 58-year-old woman?

The estimated BMR (basal metabolic rate) for a 58-year-old woman of average height and weight is 1301 kcal/day, calculated using the Mifflin-St Jeor equation.

Calorie Guide · Age 58

Calories for a 58-Year-Old Woman

Q: How many calories does a 58-year-old woman need?

A lightly active 58-year-old woman of average weight and height needs approximately 1789 kcal/day to maintain weight. Sedentary needs are around 1561 kcal, and very active around 2244 kcal.

Q: How many calories should a 58-year-old woman eat to lose weight?

A 58-year-old woman should eat approximately 1289 kcal/day to lose about 0.5 kg (1 lb) per week. This is a 500 kcal deficit from the estimated maintenance of 1789 kcal.

BMR, TDEE and exact calorie targets for weight loss, maintenance and muscle gain at age 58.

Calorie Needs at Age 58 — Average Woman

1301

BMR (at rest)

1561

Sedentary TDEE

1789
Lightly active TDEE

2017

Moderately active

1289

Weight loss target

1789

Maintenance

2089

Muscle gain target

How Many Calories Does a 58-Year-Old Woman Need?

Using the Mifflin-St Jeor equation with average US height and weight for a woman aged 58, the resting metabolic rate (BMR) is approximately 1301 kcal/day. With typical daily activity included, total calorie expenditure (TDEE) ranges from 1561 kcal (sedentary) to 2244 kcal (very active).

Age 58 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	1039 kcal	~0.75 kg/week
📉 Weight loss	1289 kcal	~0.5 kg/week
✅ Maintenance	1789 kcal	Weight stable
💪 Lean bulk	2089 kcal	~0.25 kg/week
🏋️ Aggressive bulk	2289 kcal	~0.5 kg/week

Calorie Needs by Activity Level

Activity Level	Description	Daily Calories
Sedentary	Desk job, minimal movement	1561 kcal
Lightly active	1–3 workouts/week	1789 kcal
Moderately active	3–5 workouts/week	2017 kcal
Very active	Hard training 6–7 days/week	2244 kcal

How Metabolism Changes Around Age 58

Metabolic rate declines approximately 1–2% per decade after age 30, driven primarily by muscle loss (sarcopenia) rather than any inherent slowdown. At age 58, your BMR of 1301 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 58
48	1351 kcal	+50 kcal
53	1326 kcal	+25 kcal
58	1301 kcal	—
63	1276 kcal	-25 kcal
68	1251 kcal	-50 kcal

Macronutrient Split at 1789 kcal

Macro	% of Calories	Grams/day	Calories
Protein	30%	134 g	536 kcal
Carbohydrates	40%	179 g	716 kcal
Fat	30%	60 g	540 kcal

At age 58, 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 58-year-old woman need per day?A lightly active 58-year-old woman of average size needs approximately 1789 kcal/day to maintain weight. This ranges from 1561 kcal (sedentary) to 2244 kcal (very active).

How many calories should a 58-year-old woman eat to lose weight?Aim for 1289 kcal/day — a 500 kcal deficit from the 1789 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 58 affect how many calories you burn?Yes. Every decade after 30, BMR drops ~1–2% mainly due to muscle loss. At age 58 the estimated BMR is 1301 kcal — compare to 1441 kcal at age 30. Resistance training largely offsets this decline.

Related Age Guides

Sources

WHO CDC Mifflin-St Jeor (PubMed)