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BMR Equation:
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Basal Metabolic Rate (BMR) is the number of calories your body needs to perform basic life-sustaining functions at rest. It represents the minimum energy required to maintain vital functions such as breathing, circulation, and cell production.
The calculator uses the BMR equation:
Where:
Explanation: This equation calculates the basal metabolic rate for adult females. For males, a different equation would be used (BMR = 10 × weight + 6.25 × height - 5 × age + 5).
Details: Knowing your BMR is essential for effective weight loss planning. It helps determine your daily calorie needs and create a calorie deficit necessary for weight loss while ensuring you consume enough energy for basic bodily functions.
Tips: Enter your weight in kilograms, height in centimeters, and age in years. All values must be valid (weight > 0, height > 0, age between 1-120). The result shows your estimated BMR in calories per day.
Q1: What's the difference between BMR and TDEE?
A: BMR is the calories burned at complete rest, while TDEE (Total Daily Energy Expenditure) includes all activities and is typically higher than BMR.
Q2: How can I use BMR for weight loss?
A: Calculate your TDEE by multiplying BMR by your activity level, then create a calorie deficit of 500-1000 calories per day for safe weight loss of 0.5-1 kg per week.
Q3: Does BMR change over time?
A: Yes, BMR decreases with age and weight loss, and increases with muscle mass. Regular recalculation is recommended, especially after significant weight changes.
Q4: What factors affect BMR?
A: Age, gender, weight, height, body composition, genetics, and hormonal factors all influence your basal metabolic rate.
Q5: Is this equation accurate for everyone?
A: While this provides a good estimate, individual variations exist. For more precise measurements, professional metabolic testing is recommended.