What is the BMI for a 100 kg woman?

At 100 kg and average height (162.6 cm), the BMI is 37.8 — Obese 🔴.

Calorie Guide · Age 45 · 100 kg

Calories for a 45-Year-Old 100 kg Woman

Q: How many calories does a 45-year-old 100 kg woman need?

A lightly active 45-year-old 100 kg woman of average height needs approximately 2242 kcal/day to maintain weight. Sedentary needs are around 1956 kcal, and very active around 2812 kcal.

Q: How many calories to lose weight at 100 kg, age 45?

A 45-year-old 100 kg woman should eat approximately 1742 kcal/day to lose about 0.5 kg per week — a 500 kcal deficit from maintenance.

Exact BMR, TDEE and calorie targets for a 45-year-old woman weighing 100 kg (220 lbs).

Calorie Needs: 45 years old · 100 kg · Woman

1630

BMR (at rest)

1956

Sedentary TDEE

2242
Lightly active TDEE

2527

Moderately active

1742

Weight loss target

2242

Maintenance

2542

Muscle gain target

How Many Calories Does a 45-Year-Old 100 kg Woman Need?

Using the Mifflin-St Jeor equation with your exact inputs — age 45, weight 100 kg (220 lbs), average woman's height (162.6 cm) — the resting metabolic rate is 1630 kcal/day. With typical daily activity, total calorie expenditure (TDEE) ranges from 1956 kcal (sedentary) to 2812 kcal (very active).

Age 45 note: After 40, hormonal changes further reduce metabolic rate. Sleep, stress management and strength training become increasingly important for body composition.

Calorie Targets by Goal

Goal	Daily Calories	Expected Result
🔵 Aggressive weight loss	1492 kcal	~0.75 kg/week
📉 Weight loss	1742 kcal	~0.5 kg/week
✅ Maintenance	2242 kcal	Weight stable
💪 Lean bulk	2542 kcal	~0.25 kg/week
🏋️ Aggressive bulk	2742 kcal	~0.5 kg/week

Calorie Needs by Activity Level

Activity Level	Description	Daily Calories
Sedentary	Desk job, minimal movement	1956 kcal
Lightly active	1–3 workouts/week	2242 kcal
Moderately active	3–5 workouts/week	2527 kcal
Very active	Hard training 6–7 days/week	2812 kcal

BMI at 100 kg

At 100 kg and average height for a woman (162.6 cm), your BMI is 37.8 — Obese 🔴.

Macronutrient Split at 2242 kcal

Macro	% of Calories	Grams/day	Calories
Protein	30%	168 g	672 kcal
Carbohydrates	40%	224 g	896 kcal
Fat	30%	75 g	675 kcal

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Frequently Asked Questions

How many calories does a 45-year-old 100 kg woman need per day?A lightly active 45-year-old 100 kg woman needs approximately 2242 kcal/day to maintain weight. This ranges from 1956 kcal (sedentary) to 2812 kcal (very active).

How many calories to lose weight at 100 kg, age 45?Eat 1742 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 45 affect calorie needs compared to age 40?At age 45, BMR is approximately 1630 kcal vs 1655 kcal at age 40 — 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