How many calories should a 50-year-old 120 lb man eat to lose weight?

A 50-year-old 120 lb man should eat approximately 1418 kcal/day to lose about 1 lb per week — a 500 kcal deficit from the maintenance estimate of 1918 kcal.

What is the BMI for a 120 lb man?

At 120 lbs (54.4 kg) and average height (175.3 cm), the BMI is 17.7 — Underweight 🔵.

Calorie Guide · Age 50 · 120 lbs

Calories for a 50-Year-Old 120 lb Man

Q: How many calories does a 50-year-old 120 lb man need?

A lightly active 50-year-old 120 lb man of average height needs approximately 1918 kcal/day to maintain weight. This ranges from 1674 kcal (sedentary) to 2406 kcal (very active).

Exact BMR, TDEE and calorie targets for a 50-year-old man weighing 120 lbs (54.4 kg).

Calorie Needs: 50 years old · 120 lbs · Man

1395

BMR (at rest)

1674

Sedentary TDEE

1918
Lightly active TDEE

2162

Moderately active

1418

Weight loss target

1918

Maintenance

2218

Muscle gain target

How Many Calories Does a 50-Year-Old 120 lb Man Need?

Using the Mifflin-St Jeor equation with your exact inputs — age 50, weight 120 lbs (54.4 kg), average man's height (175.3 cm) — the resting metabolic rate is 1395 kcal/day. With typical daily activity, total calorie expenditure (TDEE) ranges from 1674 kcal (sedentary) to 2406 kcal (very active).

Age 50 note: In your fifties, protein needs stay high (1.2–1.6g/kg) while calorie needs drop. Prioritizing protein and resistance training prevents the muscle loss that accelerates aging.

Calorie Targets by Goal

Goal	Daily Calories	Expected Result
🔵 Aggressive weight loss	1168 kcal	~1.5 lbs/week
📉 Weight loss	1418 kcal	~1 lb/week
✅ Maintenance	1918 kcal	Weight stable
💪 Lean bulk	2218 kcal	~0.5 lbs/week
🏋️ Aggressive bulk	2418 kcal	~1 lb/week

Calorie Needs by Activity Level

Activity Level	Description	Daily Calories
Sedentary	Desk job, minimal movement	1674 kcal
Lightly active	1–3 workouts/week	1918 kcal
Moderately active	3–5 workouts/week	2162 kcal
Very active	Hard training 6–7 days/week	2406 kcal

BMI at 120 lbs

At 120 lbs (54.4 kg) and average height for a man (175.3 cm), your BMI is 17.7 — Underweight 🔵. BMI is a useful screening tool but doesn't measure body composition. Waist circumference and muscle mass provide additional context.

Macronutrient Split at 1918 kcal

Macro	% of Calories	Grams/day	Calories
Protein	30%	144 g	576 kcal
Carbohydrates	40%	192 g	768 kcal
Fat	30%	64 g	576 kcal

For weight loss at 1418 kcal/day, increase protein to 35% (124 g/day) to preserve muscle during the deficit. At age 50, protein becomes increasingly important for maintaining metabolic rate.

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Frequently Asked Questions

How many calories should a 50-year-old 120 lb man eat per day?A lightly active 50-year-old 120 lb man needs approximately 1918 kcal/day to maintain weight. This ranges from 1674 kcal (sedentary) to 2406 kcal (very active).

How many calories to lose weight at 120 lbs, age 50?Eat 1418 kcal/day for a 500 kcal deficit — approximately 1 lb of fat loss per week. Recalculate your targets every 4–6 weeks as your weight changes.

Does age 50 significantly affect calorie needs vs age 45?At age 50, BMR is approximately 1395 kcal vs 1420 kcal at age 45 — a difference of 25 kcal/day. This is mainly driven by gradual muscle loss over time, which is largely preventable with resistance training.

Related Calorie Guides

Sources

Mifflin-St Jeor Equation (PubMed) CDC Healthy Weight WHO