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BMR Imperial Formula:
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The BMR (Basal Metabolic Rate) Imperial equation estimates the number of calories your body needs to perform basic life-sustaining functions at rest. This formula uses imperial units (pounds for weight and inches for height) to calculate daily energy expenditure.
The calculator uses the BMR Imperial equation:
Where:
Explanation: The equation calculates the basal metabolic rate based on your body's basic energy requirements for maintaining vital functions while at complete rest.
Details: Knowing your BMR is essential for weight management, creating effective diet plans, and understanding your body's basic energy needs. It forms the foundation for calculating total daily energy expenditure.
Tips: Enter your weight in pounds, height in inches, and age in years. All values must be valid (weight > 0, height > 0, age between 1-120). For accurate results, use current measurements.
Q1: What is the difference between BMR and TDEE?
A: BMR represents calories burned at complete rest, while TDEE (Total Daily Energy Expenditure) includes all daily activities and exercise.
Q2: How often should I recalculate my BMR?
A: Recalculate whenever your weight changes significantly (5+ pounds) or every 3-6 months to account for natural metabolic changes.
Q3: Does this formula work for everyone?
A: While generally accurate for most adults, individual variations in muscle mass, body composition, and metabolic health can affect results.
Q4: Should I use imperial or metric measurements?
A: Use whichever system you're most comfortable with. This calculator uses imperial units (pounds and inches) for convenience.
Q5: How can I use my BMR for weight loss?
A: Create a calorie deficit by consuming fewer calories than your TDEE (which is based on your BMR plus activity level), typically 500-1000 calories less per day for safe weight loss.