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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 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 based on your body weight, height, and age, providing an estimate of your daily calorie needs at complete rest.
Details: Knowing your BMR is crucial for effective weight loss planning. It helps you determine your daily calorie needs and create a calorie deficit by consuming fewer calories than your total daily energy expenditure (which includes BMR plus physical activity).
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: Create a calorie deficit by consuming 300-500 calories less than your TDEE (which is BMR multiplied by your activity level).
Q3: Does BMR change with weight loss?
A: Yes, as you lose weight, your BMR typically decreases because there's less body mass to maintain.
Q4: How accurate is this BMR calculation?
A: This provides a good estimate, but individual variations in metabolism, muscle mass, and other factors can affect actual BMR.
Q5: Should I eat below my BMR for weight loss?
A: No, you should never eat below your BMR as this can slow down your metabolism and be unhealthy. Create a deficit from your TDEE instead.