How many calories should a 25-year-old 170 lb woman eat to lose weight?

A 25-year-old 170 lb woman should eat approximately 1564 kcal/day to lose about 1 lb per week — a 500 kcal deficit from the maintenance estimate of 2064 kcal.

What is the BMI for a 170 lb woman?

At 170 lbs (77.1 kg) and average height (162.6 cm), the BMI is 29.2 — Overweight ⚠️.

Calorie Guide · Age 25 · 170 lbs

Calories for a 25-Year-Old 170 lb Woman

Q: How many calories does a 25-year-old 170 lb woman need?

A lightly active 25-year-old 170 lb woman of average height needs approximately 2064 kcal/day to maintain weight. This ranges from 1802 kcal (sedentary) to 2590 kcal (very active).

Exact BMR, TDEE and calorie targets for a 25-year-old woman weighing 170 lbs (77.1 kg).

Calorie Needs: 25 years old · 170 lbs · Woman

1501

BMR (at rest)

1802

Sedentary TDEE

2064
Lightly active TDEE

2327

Moderately active

1564

Weight loss target

2064

Maintenance

2364

Muscle gain target

How Many Calories Does a 25-Year-Old 170 lb Woman Need?

Using the Mifflin-St Jeor equation with your exact inputs — age 25, weight 170 lbs (77.1 kg), average woman's height (162.6 cm) — the resting metabolic rate is 1501 kcal/day. With typical daily activity, total calorie expenditure (TDEE) ranges from 1802 kcal (sedentary) to 2590 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	1314 kcal	~1.5 lbs/week
📉 Weight loss	1564 kcal	~1 lb/week
✅ Maintenance	2064 kcal	Weight stable
💪 Lean bulk	2364 kcal	~0.5 lbs/week
🏋️ Aggressive bulk	2564 kcal	~1 lb/week

Calorie Needs by Activity Level

Activity Level	Description	Daily Calories
Sedentary	Desk job, minimal movement	1802 kcal
Lightly active	1–3 workouts/week	2064 kcal
Moderately active	3–5 workouts/week	2327 kcal
Very active	Hard training 6–7 days/week	2590 kcal

BMI at 170 lbs

At 170 lbs (77.1 kg) and average height for a woman (162.6 cm), your BMI is 29.2 — Overweight ⚠️. BMI is a useful screening tool but doesn't measure body composition. Waist circumference and muscle mass provide additional context.

Macronutrient Split at 2064 kcal

Macro	% of Calories	Grams/day	Calories
Protein	30%	155 g	620 kcal
Carbohydrates	40%	206 g	824 kcal
Fat	30%	69 g	621 kcal

For weight loss at 1564 kcal/day, increase protein to 35% (137 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 170 lb woman eat per day?A lightly active 25-year-old 170 lb woman needs approximately 2064 kcal/day to maintain weight. This ranges from 1802 kcal (sedentary) to 2590 kcal (very active).

How many calories to lose weight at 170 lbs, age 25?Eat 1564 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 1501 kcal vs 1526 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