What is the BMR for a 65-year-old man?

The estimated BMR (basal metabolic rate) for a 65-year-old man of average height and weight is 1664 kcal/day, calculated using the Mifflin-St Jeor equation.

Calorie Guide · Age 65

Calories for a 65-Year-Old Man

Q: How many calories does a 65-year-old man need?

A lightly active 65-year-old man of average weight and height needs approximately 2287 kcal/day to maintain weight. Sedentary needs are around 1996 kcal, and very active around 2870 kcal.

Q: How many calories should a 65-year-old man eat to lose weight?

A 65-year-old man should eat approximately 1787 kcal/day to lose about 0.5 kg (1 lb) per week. This is a 500 kcal deficit from the estimated maintenance of 2287 kcal.

BMR, TDEE and exact calorie targets for weight loss, maintenance and muscle gain at age 65.

Calorie Needs at Age 65 — Average Man

1664

BMR (at rest)

1996

Sedentary TDEE

2287
Lightly active TDEE

2579

Moderately active

1787

Weight loss target

2287

Maintenance

2587

Muscle gain target

How Many Calories Does a 65-Year-Old Man Need?

Using the Mifflin-St Jeor equation with average US height and weight for a man aged 65, the resting metabolic rate (BMR) is approximately 1664 kcal/day. With typical daily activity included, total calorie expenditure (TDEE) ranges from 1996 kcal (sedentary) to 2870 kcal (very active).

Age 65 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	1537 kcal	~0.75 kg/week
📉 Weight loss	1787 kcal	~0.5 kg/week
✅ Maintenance	2287 kcal	Weight stable
💪 Lean bulk	2587 kcal	~0.25 kg/week
🏋️ Aggressive bulk	2787 kcal	~0.5 kg/week

Calorie Needs by Activity Level

Activity Level	Description	Daily Calories
Sedentary	Desk job, minimal movement	1996 kcal
Lightly active	1–3 workouts/week	2287 kcal
Moderately active	3–5 workouts/week	2579 kcal
Very active	Hard training 6–7 days/week	2870 kcal

How Metabolism Changes Around Age 65

Metabolic rate declines approximately 1–2% per decade after age 30, driven primarily by muscle loss (sarcopenia) rather than any inherent slowdown. At age 65, your BMR of 1664 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 (man)	Change vs age 65
55	1714 kcal	+50 kcal
60	1689 kcal	+25 kcal
65	1664 kcal	—
70	1639 kcal	-25 kcal
70	1639 kcal	-25 kcal

Macronutrient Split at 2287 kcal

Macro	% of Calories	Grams/day	Calories
Protein	30%	172 g	688 kcal
Carbohydrates	40%	229 g	916 kcal
Fat	30%	76 g	684 kcal

At age 65, protein intake is especially important. Aim for at least 71–89 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 65-year-old man need per day?A lightly active 65-year-old man of average size needs approximately 2287 kcal/day to maintain weight. This ranges from 1996 kcal (sedentary) to 2870 kcal (very active).

How many calories should a 65-year-old man eat to lose weight?Aim for 1787 kcal/day — a 500 kcal deficit from the 2287 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 65 affect how many calories you burn?Yes. Every decade after 30, BMR drops ~1–2% mainly due to muscle loss. At age 65 the estimated BMR is 1664 kcal — compare to 1839 kcal at age 30. Resistance training largely offsets this decline.

Related Age Guides

Sources

WHO CDC Mifflin-St Jeor (PubMed)