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BMR Formula for Women:
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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. This includes breathing, circulation, cell production, and nutrient processing.
The calculator uses the Mifflin-St Jeor equation for women:
Where:
Explanation: This equation provides an estimate of how many calories your body burns at rest, which forms the foundation for determining your daily calorie needs for weight management.
Details: Knowing your BMR is essential for effective weight loss planning. It helps determine your maintenance calories, from which you can create a calorie deficit by consuming fewer calories or increasing physical activity.
Tips: Enter your current weight in kg, height in cm, and age in years. For accurate results, use precise measurements. All values must be valid (weight > 0, height > 0, age between 1-120).
Q1: How accurate is this BMR calculation?
A: The Mifflin-St Jeor equation is considered one of the most accurate BMR formulas, with an accuracy of about ±10% for most people.
Q2: Should I eat exactly my BMR to lose weight?
A: No, your BMR represents only your resting metabolism. You need to account for activity level and create a moderate calorie deficit (typically 300-500 calories below your maintenance level) for sustainable weight loss.
Q3: 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.
Q4: Does this formula work for men?
A: No, this is specifically for women. Men use a different formula: BMR = 10 × Weight + 6.25 × Height - 5 × Age + 5.
Q5: What factors can affect my actual BMR?
A: Muscle mass, genetics, hormones, body composition, environmental temperature, and certain medical conditions can all influence your actual metabolic rate.