What is the BMR for a 70-year-old woman?

The estimated BMR (basal metabolic rate) for a 70-year-old woman of average height and weight is 1241 kcal/day, calculated using the Mifflin-St Jeor equation.

Calorie Guide · Age 70

Calories for a 70-Year-Old Woman

Q: How many calories does a 70-year-old woman need?

A lightly active 70-year-old woman of average weight and height needs approximately 1707 kcal/day to maintain weight. Sedentary needs are around 1489 kcal, and very active around 2141 kcal.

Q: How many calories should a 70-year-old woman eat to lose weight?

A 70-year-old woman should eat approximately 1207 kcal/day to lose about 0.5 kg (1 lb) per week. This is a 500 kcal deficit from the estimated maintenance of 1707 kcal.

BMR, TDEE and exact calorie targets for weight loss, maintenance and muscle gain at age 70.

Calorie Needs at Age 70 — Average Woman

1241

BMR (at rest)

1489

Sedentary TDEE

1707
Lightly active TDEE

1924

Moderately active

1207

Weight loss target

1707

Maintenance

2007

Muscle gain target

How Many Calories Does a 70-Year-Old Woman Need?

Using the Mifflin-St Jeor equation with average US height and weight for a woman aged 70, the resting metabolic rate (BMR) is approximately 1241 kcal/day. With typical daily activity included, total calorie expenditure (TDEE) ranges from 1489 kcal (sedentary) to 2141 kcal (very active).

Age 70 note: After 65, calorie needs drop but protein needs stay high or increase to prevent muscle loss. Aim for 1–1.2 g/kg of protein and stay active to preserve functional strength.

Calorie Targets by Goal

Goal	Daily Calories	Expected Result
🔵 Aggressive weight loss	957 kcal	~0.75 kg/week
📉 Weight loss	1207 kcal	~0.5 kg/week
✅ Maintenance	1707 kcal	Weight stable
💪 Lean bulk	2007 kcal	~0.25 kg/week
🏋️ Aggressive bulk	2207 kcal	~0.5 kg/week

Calorie Needs by Activity Level

Activity Level	Description	Daily Calories
Sedentary	Desk job, minimal movement	1489 kcal
Lightly active	1–3 workouts/week	1707 kcal
Moderately active	3–5 workouts/week	1924 kcal
Very active	Hard training 6–7 days/week	2141 kcal

How Metabolism Changes Around Age 70

Metabolic rate declines approximately 1–2% per decade after age 30, driven primarily by muscle loss (sarcopenia) rather than any inherent slowdown. At age 70, your BMR of 1241 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 70
60	1291 kcal	+50 kcal
65	1266 kcal	+25 kcal
70	1241 kcal	—
70	1241 kcal	—
70	1241 kcal	—

Macronutrient Split at 1707 kcal

Macro	% of Calories	Grams/day	Calories
Protein	30%	128 g	512 kcal
Carbohydrates	40%	171 g	684 kcal
Fat	30%	57 g	513 kcal

At age 70, 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 70-year-old woman need per day?A lightly active 70-year-old woman of average size needs approximately 1707 kcal/day to maintain weight. This ranges from 1489 kcal (sedentary) to 2141 kcal (very active).

How many calories should a 70-year-old woman eat to lose weight?Aim for 1207 kcal/day — a 500 kcal deficit from the 1707 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 70 affect how many calories you burn?Yes. Every decade after 30, BMR drops ~1–2% mainly due to muscle loss. At age 70 the estimated BMR is 1241 kcal — compare to 1441 kcal at age 30. Resistance training largely offsets this decline.

Related Age Guides

Sources

WHO CDC Mifflin-St Jeor (PubMed)