How many calories should a 25-year-old 120 lb man eat to lose weight?

A 25-year-old 120 lb man should eat approximately 1590 kcal/day to lose about 1 lb per week — a 500 kcal deficit from the maintenance estimate of 2090 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 25 · 120 lbs

Calories for a 25-Year-Old 120 lb Man

Q: How many calories does a 25-year-old 120 lb man need?

A lightly active 25-year-old 120 lb man of average height needs approximately 2090 kcal/day to maintain weight. This ranges from 1824 kcal (sedentary) to 2622 kcal (very active).

Exact BMR, TDEE and calorie targets for a 25-year-old man weighing 120 lbs (54.4 kg).

Calorie Needs: 25 years old · 120 lbs · Man

1520

BMR (at rest)

1824

Sedentary TDEE

2090
Lightly active TDEE

2356

Moderately active

1590

Weight loss target

2090

Maintenance

2390

Muscle gain target

How Many Calories Does a 25-Year-Old 120 lb Man Need?

Using the Mifflin-St Jeor equation with your exact inputs — age 25, weight 120 lbs (54.4 kg), average man's height (175.3 cm) — the resting metabolic rate is 1520 kcal/day. With typical daily activity, total calorie expenditure (TDEE) ranges from 1824 kcal (sedentary) to 2622 kcal (very active).

Age 25 note: In your mid-twenties, metabolism is near its peak. This is an ideal time to build muscle mass, which raises your resting BMR permanently.

Calorie Targets by Goal

Goal	Daily Calories	Expected Result
🔵 Aggressive weight loss	1340 kcal	~1.5 lbs/week
📉 Weight loss	1590 kcal	~1 lb/week
✅ Maintenance	2090 kcal	Weight stable
💪 Lean bulk	2390 kcal	~0.5 lbs/week
🏋️ Aggressive bulk	2590 kcal	~1 lb/week

Calorie Needs by Activity Level

Activity Level	Description	Daily Calories
Sedentary	Desk job, minimal movement	1824 kcal
Lightly active	1–3 workouts/week	2090 kcal
Moderately active	3–5 workouts/week	2356 kcal
Very active	Hard training 6–7 days/week	2622 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 2090 kcal

Macro	% of Calories	Grams/day	Calories
Protein	30%	157 g	628 kcal
Carbohydrates	40%	209 g	836 kcal
Fat	30%	70 g	630 kcal

For weight loss at 1590 kcal/day, increase protein to 35% (139 g/day) to preserve muscle during the deficit. At age 25, protein becomes increasingly important for maintaining metabolic rate.

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Frequently Asked Questions

How many calories should a 25-year-old 120 lb man eat per day?A lightly active 25-year-old 120 lb man needs approximately 2090 kcal/day to maintain weight. This ranges from 1824 kcal (sedentary) to 2622 kcal (very active).

How many calories to lose weight at 120 lbs, age 25?Eat 1590 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 25 significantly affect calorie needs vs age 20?At age 25, BMR is approximately 1520 kcal vs 1545 kcal at age 20 — 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