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BMR Equation for Women:
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The BMR (Basal Metabolic Rate) equation for women estimates the number of calories your body needs to maintain basic physiological functions at complete rest. It's based on the Mifflin-St Jeor equation, which is currently considered the most accurate for calculating BMR.
The calculator uses the Mifflin-St Jeor equation for women:
Where:
Explanation: The equation accounts for the energy needed to maintain basic bodily functions like breathing, circulation, and cell production while at complete rest.
Details: Knowing your BMR is essential for weight management, as it helps determine your daily caloric needs. It serves as the foundation for calculating your total daily energy expenditure (TDEE) when combined with your activity level.
Tips: Enter your weight in kilograms, height in centimeters, and age in years. For accurate results, use precise measurements and update them regularly if your weight changes.
Q1: How accurate is this BMR calculation?
A: The Mifflin-St Jeor equation is about 70% accurate for most people. For more precise measurements, indirect calorimetry is needed.
Q2: Why is BMR different for women and men?
A: Men typically have more muscle mass and less body fat than women, resulting in a higher BMR due to muscle's higher metabolic activity.
Q3: How often should I recalculate my BMR?
A: You should recalculate whenever your weight changes significantly (5+ kg) or at least every 6 months as you age.
Q4: Does pregnancy affect BMR?
A: Yes, BMR increases during pregnancy, especially in the second and third trimesters. This calculator is not designed for pregnant women.
Q5: How can I use my BMR for weight loss?
A: To lose weight, consume fewer calories than your TDEE (BMR multiplied by your activity factor). A deficit of 500 kcal/day typically results in about 0.5 kg weight loss per week.