Calorie Calculator To Lose Weight Healthline Formula

Mifflin-St Jeor Equation for Women:

\[ Calories = (10 \times weight + 6.25 \times height - 5 \times age - 161) \times activity\_factor - 500 \]

Weight:

Height:

Age:

years

Activity Factor:

Recommended Daily Calories:

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1. What is the Mifflin-St Jeor Equation?

The Mifflin-St Jeor equation is considered the most accurate for estimating basal metabolic rate (BMR) and total daily energy expenditure (TDEE). This version is specifically for women and includes a 500 kcal deficit for weight loss.

2. How Does the Calculator Work?

The calculator uses the Mifflin-St Jeor equation:

\[ Calories = (10 \times weight + 6.25 \times height - 5 \times age - 161) \times activity\_factor - 500 \]

Where:

\( weight \) — Body weight in kilograms
\( height \) — Height in centimeters
\( age \) — Age in years
\( activity\_factor \) — Multiplier for physical activity level
\( -500 \) — Calorie deficit for weight loss (approx. 0.5kg/week)

Explanation: The equation first calculates your basal metabolic rate (BMR), then adjusts for activity level, and finally subtracts 500 kcal to create a weight loss deficit.

3. Importance of Calorie Calculation

Details: Accurate calorie estimation is crucial for healthy, sustainable weight loss. A 500 kcal daily deficit typically results in about 0.5 kg (1 lb) of weight loss per week.

4. Using the Calculator

Tips: Enter your current weight in kg, height in cm, age in years, and select your activity level. For accurate results, use morning measurements before eating.

5. Frequently Asked Questions (FAQ)

Q1: Why subtract 500 calories?
A: A 500 kcal daily deficit creates about 0.5 kg (1 lb) of weight loss per week, which is considered safe and sustainable.

Q2: Should I eat fewer calories for faster weight loss?
A: Women should generally not consume fewer than 1200 kcal/day without medical supervision to ensure adequate nutrition.

Q3: How accurate is this calculation?
A: While the Mifflin-St Jeor equation is the most accurate, individual variations in metabolism can cause ±10% differences.

Q4: When should I recalculate my needs?
A: Recalculate every 5-10 kg of weight loss, as your calorie needs decrease with lower body weight.

Q5: What if I'm not losing weight at this calorie level?
A: You may need to adjust your calorie intake slightly lower or increase physical activity, but consult a professional if progress stalls.