What is the BMI for a 55 kg woman?

At 55 kg and average height (162.6 cm), the BMI is 20.8 — Healthy weight ✅.

Calorie Guide · Age 50 · 55 kg

Calories for a 50-Year-Old 55 kg Woman

Q: How many calories does a 50-year-old 55 kg woman need?

A lightly active 50-year-old 55 kg woman of average height needs approximately 1588 kcal/day to maintain weight. Sedentary needs are around 1386 kcal, and very active around 1993 kcal.

Q: How many calories to lose weight at 55 kg, age 50?

A 50-year-old 55 kg woman should eat approximately 1088 kcal/day to lose about 0.5 kg per week — a 500 kcal deficit from maintenance.

Exact BMR, TDEE and calorie targets for a 50-year-old woman weighing 55 kg (121 lbs).

Calorie Needs: 50 years old · 55 kg · Woman

1155

BMR (at rest)

1386

Sedentary TDEE

1588
Lightly active TDEE

1791

Moderately active

1088

Weight loss target

1588

Maintenance

1888

Muscle gain target

How Many Calories Does a 50-Year-Old 55 kg Woman Need?

Using the Mifflin-St Jeor equation with your exact inputs — age 50, weight 55 kg (121 lbs), average woman's height (162.6 cm) — the resting metabolic rate is 1155 kcal/day. With typical daily activity, total calorie expenditure (TDEE) ranges from 1386 kcal (sedentary) to 1993 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	838 kcal	~0.75 kg/week
📉 Weight loss	1088 kcal	~0.5 kg/week
✅ Maintenance	1588 kcal	Weight stable
💪 Lean bulk	1888 kcal	~0.25 kg/week
🏋️ Aggressive bulk	2088 kcal	~0.5 kg/week

Calorie Needs by Activity Level

Activity Level	Description	Daily Calories
Sedentary	Desk job, minimal movement	1386 kcal
Lightly active	1–3 workouts/week	1588 kcal
Moderately active	3–5 workouts/week	1791 kcal
Very active	Hard training 6–7 days/week	1993 kcal

BMI at 55 kg

At 55 kg and average height for a woman (162.6 cm), your BMI is 20.8 — Healthy weight ✅.

Macronutrient Split at 1588 kcal

Macro	% of Calories	Grams/day	Calories
Protein	30%	119 g	476 kcal
Carbohydrates	40%	159 g	636 kcal
Fat	30%	53 g	477 kcal

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Frequently Asked Questions

How many calories does a 50-year-old 55 kg woman need per day?A lightly active 50-year-old 55 kg woman needs approximately 1588 kcal/day to maintain weight. This ranges from 1386 kcal (sedentary) to 1993 kcal (very active).

How many calories to lose weight at 55 kg, age 50?Eat 1088 kcal/day — a 500 kcal deficit from maintenance — to lose approximately 0.5 kg per week. Recalculate every 4–6 weeks as your weight changes.

How does age 50 affect calorie needs compared to age 45?At age 50, BMR is approximately 1155 kcal vs 1180 kcal at age 45 — a difference of 25 kcal/day. Resistance training largely offsets age-related metabolic decline.

Related Calorie Guides

Sources

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