1. What is the Healthline Weight Loss Calculator?

This calculator estimates your Basal Metabolic Rate (BMR), Total Daily Energy Expenditure (TDEE), and recommended calorie intake for weight loss based on the Healthline method specifically for women.

2. How Does the Calculator Work?

The calculator uses these formulas:

Where:

• \( weight \) — Body weight in kilograms
• \( height \) — Height in centimeters
• \( age \) — Age in years
• \( activity\ factor \) — Multiplier based on activity level
• \( deficit \) — Calorie deficit for weight loss (typically 500 kcal/day)

Explanation: BMR represents calories burned at rest, TDEE accounts for activity level, and the deficit creates weight loss.

3. Importance of Calorie Calculation

Details: Accurate calorie estimation is crucial for healthy, sustainable weight loss. Too large a deficit can be unhealthy, while too small may not produce results.

4. Using the Calculator

Tips: Enter weight in kg, height in cm, age in years, select activity level, and desired calorie deficit. All values must be valid (weight > 0, height > 0, age between 1-120).

5. Frequently Asked Questions (FAQ)

Q1: Why is this calculator specific to women?
A: The BMR formula includes a -161 adjustment that's specific to female physiology.

Q2: What's a safe calorie deficit?
A: 300-500 kcal/day is generally safe, resulting in 0.25-0.5 kg weight loss per week.

Q3: How accurate is the activity factor?
A: It's an estimate. If weight isn't changing as expected, adjust your activity level.

Q4: Should I eat below my BMR?
A: Generally no - eating below BMR can slow metabolism and cause nutrient deficiencies.

Q5: When should I recalculate my needs?
A: Recalculate every 5-10 kg of weight loss or if activity level changes significantly.