Bmr Tdee Calculator Weight Loss

BMR and TDEE Formulas:

\[ BMR = 10 \times weight + 6.25 \times height - 5 \times age - 161 \] \[ TDEE = BMR \times activity\ factor \]

Weight:

Height:

Age:

years

Activity Factor:

BMR (Basal Metabolic Rate):

TDEE (Total Daily Energy Expenditure):

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1. What is BMR and TDEE?

BMR (Basal Metabolic Rate) is the number of calories your body needs to perform basic life-sustaining functions at rest. TDEE (Total Daily Energy Expenditure) is the total number of calories you burn in a day, including all activities and exercise.

2. How Does the Calculator Work?

The calculator uses the following formulas:

\[ BMR = 10 \times weight + 6.25 \times height - 5 \times age - 161 \] \[ TDEE = BMR \times activity\ factor \]

Where:

\( weight \) — Body weight in kilograms (kg)
\( height \) — Height in centimeters (cm)
\( age \) — Age in years
\( activity\ factor \) — Multiplier based on activity level (1.2-1.9)

Explanation: The BMR formula estimates your resting metabolic rate, while TDEE calculates your total daily calorie needs based on your activity level.

3. Importance of BMR and TDEE for Weight Loss

Details: Understanding your BMR and TDEE is crucial for effective weight management. To lose weight, you need to consume fewer calories than your TDEE, creating a calorie deficit. A deficit of 500-1000 calories per day typically results in safe weight loss of 0.5-1 kg per week.

4. Using the Calculator

Tips: Enter your weight in kg, height in cm, age in years, and select your activity level based on your weekly exercise routine. All values must be valid (weight > 0, height > 0, age between 1-120).

5. Frequently Asked Questions (FAQ)

Q1: How accurate is this BMR calculation?
A: This provides a good estimate, but individual variations in metabolism mean actual BMR may differ by ±10-15%.

Q2: What's the best calorie deficit for weight loss?
A: A deficit of 500-1000 calories per day is generally recommended for safe and sustainable weight loss of 0.5-1 kg per week.

Q3: Should I eat at my BMR or TDEE for weight loss?
A: For weight loss, aim to eat below your TDEE but not below your BMR, as eating below BMR can slow your metabolism.

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

Q5: Are there different formulas for men and women?
A: Yes, this formula is specifically for women. Men would use a different formula: BMR = 10 × weight + 6.25 × height - 5 × age + 5.