Bmr Tdee Calculator Weight Loss Percentage

Equations:

\[ BMR (Men) = 88.362 + (13.397 \times weight\ kg) + (4.799 \times height\ cm) - (5.677 \times age\ years) \] \[ BMR (Women) = 447.593 + (9.247 \times weight\ kg) + (3.098 \times height\ cm) - (4.330 \times age\ years) \] \[ TDEE = BMR \times activity\_factor \] \[ Percentage\ Loss = \frac{(initial\_weight - current\_weight)}{initial\_weight} \times 100 \]

Gender:

Weight:

Height:

Age:

years

Activity Level:

Initial Weight (for % loss):

Basal Metabolic Rate (BMR):

Total Daily Energy Expenditure (TDEE):

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1. What is BMR and TDEE?

BMR (Basal Metabolic Rate) is the number of calories your body needs at complete rest to maintain basic functions like breathing and circulation. TDEE (Total Daily Energy Expenditure) is your total calorie needs including physical activity.

2. How Does the Calculator Work?

The calculator uses the Mifflin-St Jeor equations:

Where activity factors are:

1.2 — Sedentary (little or no exercise)
1.375 — Lightly active (light exercise 1-3 days/week)
1.55 — Moderately active (moderate exercise 3-5 days/week)
1.725 — Very active (hard exercise 6-7 days/week)
1.9 — Extra active (very hard exercise & physical job)

3. Understanding Weight Loss Percentage

Weight loss percentage is calculated as:

\[ Percentage\ Loss = \frac{(initial\_weight - current\_weight)}{initial\_weight} \times 100 \]

This metric helps track progress independent of starting weight and is useful for comparing individuals with different body sizes.

4. Using the Calculator

Tips: Enter weight in kg, height in cm, and age in years. Select your activity level accurately. For weight loss percentage, provide your starting weight.

5. Frequently Asked Questions (FAQ)

Q1: Which is more accurate - BMR or TDEE?
A: BMR is more standardized while TDEE depends on your activity estimate. TDEE is more useful for weight management.

Q2: How often should I recalculate my TDEE?
A: Recalculate whenever your weight changes by 5+ kg or your activity level changes significantly.

Q3: Why track weight loss percentage instead of kg?
A: Percentage accounts for different starting weights, making progress more comparable between individuals.

Q4: What's a healthy weight loss percentage rate?
A: 0.5-1% of body weight per week is generally sustainable and healthy.

Q5: Does muscle gain affect these calculations?
A: Yes, muscle increases BMR. If building muscle, weight loss percentage alone may not reflect body composition changes.