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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 while at complete 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 estimated number of calories your body burns at rest based on your physical characteristics.
Details: Knowing your BMR is essential for effective weight management. It helps determine your daily caloric needs, allowing you to create a calorie deficit 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). For best results, use accurate measurements.
Q1: How accurate is this BMR calculation?
A: This equation provides a good estimate for most people, but individual variations in metabolism mean it may not be 100% accurate for everyone.
Q2: How should I use my BMR for weight loss?
A: Multiply your BMR by an activity factor to determine your Total Daily Energy Expenditure (TDEE), then create a calorie deficit of 300-500 calories below your TDEE for sustainable weight loss.
Q3: Does BMR change over time?
A: Yes, BMR decreases with age and with weight loss. It's important to recalculate periodically during your weight loss journey.
Q4: What factors affect BMR?
A: BMR is influenced by age, gender, weight, height, body composition, genetics, and hormonal factors.
Q5: Should I eat below my BMR to lose weight?
A: No, you should never eat below your BMR as this provides insufficient energy for basic bodily functions. Create a deficit from your TDEE instead.