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BMR Equation:
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BMR (Basal Metabolic Rate) is the number of calories your body needs to perform basic life-sustaining functions at rest. It represents the minimum energy required to keep your body functioning, including breathing, circulation, and cell production.
The calculator uses the BMR equation:
Where:
Explanation: This equation calculates the basal metabolic rate for women. For men, the equation would be slightly different (typically +5 instead of -161).
Details: Knowing your BMR is crucial for effective weight loss planning. It helps you determine your daily calorie needs and create a calorie deficit necessary for weight loss while ensuring you don't consume too few calories, which can slow down your metabolism.
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 calculator will provide your estimated BMR in calories per day.
Q1: What is 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 with age?
A: Yes, BMR typically decreases with age due to loss of muscle mass and changes in hormonal balance.
Q4: How accurate is this BMR calculation?
A: This provides a good estimate, but individual variations exist due to factors like muscle mass, genetics, and health conditions.
Q5: Should I eat below my BMR to lose weight?
A: No, eating below your BMR can slow down your metabolism and lead to muscle loss. Create a deficit from your TDEE, not your BMR.