1. What is TDEE, BMR and BMI?

TDEE (Total Daily Energy Expenditure) is the total number of calories you burn per day. BMR (Basal Metabolic Rate) is the number of calories your body needs at rest. BMI (Body Mass Index) is a measure of body fat based on height and weight.

2. How Does the Calculator Work?

The calculator uses the following equations:

Where:

• weight — Body weight in kilograms (kg)
• height — Height in centimeters (cm)
• age — Age in years
• activity factor — Multiplier based on activity level
• height_m — Height in meters (height/100)

3. Importance of These Calculations

Details: Understanding your TDEE helps with weight management goals. BMR represents your minimum calorie needs. BMI provides a general indicator of weight categories and health risks.

4. Using the Calculator

Tips: Enter weight in kg, height in cm, age in years, and select your activity level. All values must be valid positive numbers.

5. Frequently Asked Questions (FAQ)

Q1: What is a good BMI range?
A: Normal BMI is between 18.5-24.9. Below 18.5 is underweight, 25-29.9 is overweight, and 30+ is obese.

Q2: How accurate is the BMR calculation?
A: This provides a reasonable estimate, but individual variations exist due to muscle mass, genetics, and other factors.

Q3: Should I use TDEE for weight loss?
A: Yes, consuming 500 calories less than your TDEE per day typically results in about 0.5kg weight loss per week.

Q4: What activity factor should I choose?
A: Be honest about your activity level. Sedentary means mostly sitting, while very active means intense daily exercise.

Q5: Are there limitations to BMI?
A: BMI doesn't distinguish between muscle and fat, so athletes with high muscle mass may have high BMI without being overweight.