How many calories should a 30-year-old 170 lb man eat to lose weight?

A 30-year-old 170 lb man should eat approximately 1867 kcal/day to lose about 1 lb per week — a 500 kcal deficit from the maintenance estimate of 2367 kcal.

What is the BMI for a 170 lb man?

At 170 lbs (77.1 kg) and average height (175.3 cm), the BMI is 25.1 — Overweight ⚠️.

Calorie Guide · Age 30 · 170 lbs

Calories for a 30-Year-Old 170 lb Man

Q: How many calories does a 30-year-old 170 lb man need?

A lightly active 30-year-old 170 lb man of average height needs approximately 2367 kcal/day to maintain weight. This ranges from 2066 kcal (sedentary) to 2970 kcal (very active).

Exact BMR, TDEE and calorie targets for a 30-year-old man weighing 170 lbs (77.1 kg).

Calorie Needs: 30 years old · 170 lbs · Man

1722

BMR (at rest)

2066

Sedentary TDEE

2367
Lightly active TDEE

2669

Moderately active

1867

Weight loss target

2367

Maintenance

2667

Muscle gain target

How Many Calories Does a 30-Year-Old 170 lb Man Need?

Using the Mifflin-St Jeor equation with your exact inputs — age 30, weight 170 lbs (77.1 kg), average man's height (175.3 cm) — the resting metabolic rate is 1722 kcal/day. With typical daily activity, total calorie expenditure (TDEE) ranges from 2066 kcal (sedentary) to 2970 kcal (very active).

Age 30 note: Late twenties — metabolism is still strong. Prioritize protein and resistance training now to build a metabolic foundation that serves you for decades.

Calorie Targets by Goal

Goal	Daily Calories	Expected Result
🔵 Aggressive weight loss	1617 kcal	~1.5 lbs/week
📉 Weight loss	1867 kcal	~1 lb/week
✅ Maintenance	2367 kcal	Weight stable
💪 Lean bulk	2667 kcal	~0.5 lbs/week
🏋️ Aggressive bulk	2867 kcal	~1 lb/week

Calorie Needs by Activity Level

Activity Level	Description	Daily Calories
Sedentary	Desk job, minimal movement	2066 kcal
Lightly active	1–3 workouts/week	2367 kcal
Moderately active	3–5 workouts/week	2669 kcal
Very active	Hard training 6–7 days/week	2970 kcal

BMI at 170 lbs

At 170 lbs (77.1 kg) and average height for a man (175.3 cm), your BMI is 25.1 — Overweight ⚠️. BMI is a useful screening tool but doesn't measure body composition. Waist circumference and muscle mass provide additional context.

Macronutrient Split at 2367 kcal

Macro	% of Calories	Grams/day	Calories
Protein	30%	178 g	712 kcal
Carbohydrates	40%	237 g	948 kcal
Fat	30%	79 g	711 kcal

For weight loss at 1867 kcal/day, increase protein to 35% (163 g/day) to preserve muscle during the deficit. At age 30, protein becomes increasingly important for maintaining metabolic rate.

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Frequently Asked Questions

How many calories should a 30-year-old 170 lb man eat per day?A lightly active 30-year-old 170 lb man needs approximately 2367 kcal/day to maintain weight. This ranges from 2066 kcal (sedentary) to 2970 kcal (very active).

How many calories to lose weight at 170 lbs, age 30?Eat 1867 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 30 significantly affect calorie needs vs age 25?At age 30, BMR is approximately 1722 kcal vs 1747 kcal at age 25 — 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