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Mifflin-St Jeor Equation for Women:
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The Mifflin-St Jeor equation is a widely used formula for estimating basal metabolic rate (BMR) - the number of calories your body needs at rest to maintain basic physiological functions. It's considered one of the most accurate BMR formulas available.
The calculator uses the Mifflin-St Jeor equation for women:
Where:
Explanation: This equation calculates the minimum energy required to sustain vital functions while at complete rest, taking into account weight, height, and age factors specific to women.
Details: Knowing your BMR is essential for creating effective weight management plans, determining daily calorie needs, and understanding your body's basic energy requirements. It forms the foundation for calculating total daily energy expenditure.
Tips: Enter your weight in kilograms, height in centimeters, and age in years. For accurate results, use precise measurements. All values must be valid (weight > 0, height > 0, age between 1-120).
Q1: Why is the equation different for women?
A: Women typically have different body composition and metabolic rates compared to men, which is accounted for in the gender-specific equations.
Q2: How accurate is the Mifflin-St Jeor equation?
A: It's considered one of the most accurate BMR prediction equations, with an accuracy of about ±10% for most healthy individuals.
Q3: When should I measure my weight for BMR calculation?
A: For consistent results, measure your weight in the morning after using the bathroom and before eating or drinking.
Q4: Does this account for muscle mass?
A: The equation uses total body weight and doesn't distinguish between muscle and fat. Individuals with higher muscle mass may have slightly higher BMR than calculated.
Q5: How often should I recalculate my BMR?
A: Recalculate whenever your weight changes significantly (5+ kg) or annually as you age, since BMR decreases with age.