What is the BMR for a 19-year-old man?

The estimated BMR (basal metabolic rate) for a 19-year-old man of average height and weight is 1894 kcal/day, calculated using the Mifflin-St Jeor equation.

Calorie Guide · Age 19

Calories for a 19-Year-Old Man

Q: How many calories does a 19-year-old man need?

A lightly active 19-year-old man of average weight and height needs approximately 2604 kcal/day to maintain weight. Sedentary needs are around 2272 kcal, and very active around 3267 kcal.

Q: How many calories should a 19-year-old man eat to lose weight?

A 19-year-old man should eat approximately 2104 kcal/day to lose about 0.5 kg (1 lb) per week. This is a 500 kcal deficit from the estimated maintenance of 2604 kcal.

BMR, TDEE and exact calorie targets for weight loss, maintenance and muscle gain at age 19.

Calorie Needs at Age 19 — Average Man

1894

BMR (at rest)

2272

Sedentary TDEE

2604
Lightly active TDEE

2935

Moderately active

2104

Weight loss target

2604

Maintenance

2904

Muscle gain target

How Many Calories Does a 19-Year-Old Man Need?

Using the Mifflin-St Jeor equation with average US height and weight for a man aged 19, the resting metabolic rate (BMR) is approximately 1894 kcal/day. With typical daily activity included, total calorie expenditure (TDEE) ranges from 2272 kcal (sedentary) to 3267 kcal (very active).

Age 19 note: Metabolism is at its peak in your late teens and early twenties. Prioritize protein and resistance training to build muscle that pays dividends for decades.

Calorie Targets by Goal

Goal	Daily Calories	Expected Result
🔵 Aggressive weight loss	1854 kcal	~0.75 kg/week
📉 Weight loss	2104 kcal	~0.5 kg/week
✅ Maintenance	2604 kcal	Weight stable
💪 Lean bulk	2904 kcal	~0.25 kg/week
🏋️ Aggressive bulk	3104 kcal	~0.5 kg/week

Calorie Needs by Activity Level

Activity Level	Description	Daily Calories
Sedentary	Desk job, minimal movement	2272 kcal
Lightly active	1–3 workouts/week	2604 kcal
Moderately active	3–5 workouts/week	2935 kcal
Very active	Hard training 6–7 days/week	3267 kcal

How Metabolism Changes Around Age 19

Metabolic rate declines approximately 1–2% per decade after age 30, driven primarily by muscle loss (sarcopenia) rather than any inherent slowdown. At age 19, your BMR of 1894 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 19
18	1899 kcal	+5 kcal
18	1899 kcal	+5 kcal
19	1894 kcal	—
24	1869 kcal	-25 kcal
29	1844 kcal	-50 kcal

Macronutrient Split at 2604 kcal

Macro	% of Calories	Grams/day	Calories
Protein	30%	195 g	780 kcal
Carbohydrates	40%	260 g	1040 kcal
Fat	30%	87 g	783 kcal

At age 19, 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.

Get personalized calorie targets based on your exact weight, height and activity level.

Calculate My TDEE →

Frequently Asked Questions

How many calories does a 19-year-old man need per day?A lightly active 19-year-old man of average size needs approximately 2604 kcal/day to maintain weight. This ranges from 2272 kcal (sedentary) to 3267 kcal (very active).

How many calories should a 19-year-old man eat to lose weight?Aim for 2104 kcal/day — a 500 kcal deficit from the 2604 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 19 affect how many calories you burn?Yes. Every decade after 30, BMR drops ~1–2% mainly due to muscle loss. At age 19 the estimated BMR is 1894 kcal — compare to 1839 kcal at age 30. Resistance training largely offsets this decline.

Related Age Guides

Sources

WHO CDC Mifflin-St Jeor (PubMed)