Bmr Calculator How Many Calories To Lose Weight

BMR and Calorie Deficit Formula:

\[ BMR = 10 \times weight + 6.25 \times height - 5 \times age - 161 \] \[ Calories = BMR \times 1.2 - 500 \]

BMR:

Calories to Lose Weight:

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1. What is BMR and Calorie Deficit?

BMR (Basal Metabolic Rate) is the number of calories your body needs to perform basic life-sustaining functions. A calorie deficit occurs when you consume fewer calories than your body burns, leading to weight loss.

2. How Does the Calculator Work?

The calculator uses the following formulas:

\[ BMR = 10 \times weight + 6.25 \times height - 5 \times age - 161 \] \[ Calories = BMR \times 1.2 - 500 \]

Where:

\( weight \) — Body weight in kilograms (kg)
\( height \) — Height in centimeters (cm)
\( age \) — Age in years
1.2 — Sedentary activity level multiplier
500 — Daily calorie deficit for weight loss

Explanation: The formula calculates your basal metabolic rate and then determines the daily calorie intake needed to create a 500-calorie deficit for sustainable weight loss.

3. Importance of Calorie Deficit

Details: A controlled calorie deficit is essential for healthy weight loss. A 500-calorie daily deficit typically results in about 0.5kg (1lb) of weight loss per week, which is considered safe and sustainable.

4. Using the Calculator

Tips: Enter your current weight in kg, height in cm, and age in years. All values must be valid positive numbers. The calculator assumes a sedentary lifestyle; adjust accordingly if you're more active.

5. Frequently Asked Questions (FAQ)

Q1: Is a 500-calorie deficit safe for everyone?
A: For most adults, a 500-calorie deficit is safe, but individuals should consult with a healthcare provider before starting any weight loss program.

Q2: How accurate is the BMR calculation?
A: This provides a good estimate, but individual metabolism can vary based on muscle mass, genetics, and other factors.

Q3: Should I eat below my BMR to lose weight?
A: It's generally not recommended to eat below your BMR as this provides the minimum calories needed for basic bodily functions.

Q4: How often should I recalculate my calorie needs?
A: Recalculate every 4-6 weeks or after significant weight loss (5+ kg) as your BMR will decrease with weight loss.

Q5: What if I'm more active than sedentary?
A: If you exercise regularly, you may need to adjust the activity multiplier (1.2) to a higher value for more accurate results.