Bmr Calculator Nhs Weight Loss

BMR Equations:

For Men: BMR = 10 × weight + 6.25 × height - 5 × age + 5
For Women: BMR = 10 × weight + 6.25 × height - 5 × age - 161

Weight:

kilograms

Height:

centimeters

Age:

years

Gender:

Basal Metabolic Rate (BMR):

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1. What is BMR?

Basal Metabolic Rate (BMR) is the number of calories your body needs to perform basic life-sustaining functions at rest. This includes breathing, circulation, cell production, and nutrient processing.

2. How Does the Calculator Work?

The calculator uses the Mifflin-St Jeor equations:

For Men: BMR = 10 × weight + 6.25 × height - 5 × age + 5
For Women: BMR = 10 × weight + 6.25 × height - 5 × age - 161

Where:

Weight — in kilograms (kg)
Height — in centimeters (cm)
Age — in years
Gender — Biological sex for appropriate equation selection

Explanation: These equations provide an estimate of your basal metabolic rate, which forms the foundation for calculating your total daily energy expenditure.

3. Importance of BMR Calculation for Weight Loss

Details: Knowing your BMR is essential for effective weight management. It helps determine your maintenance calories and create appropriate calorie deficits for weight loss while ensuring you meet your body's basic nutritional needs.

4. Using the Calculator

Tips: Enter your current weight in kilograms, height in centimeters, age in years, and select your gender. For accurate results, use precise measurements and update them regularly as your body changes.

5. Frequently Asked Questions (FAQ)

Q1: How accurate is the BMR calculation?
A: The Mifflin-St Jeor equations are considered among the most accurate for estimating BMR in healthy adults, with accuracy within ±10% for most individuals.

Q2: Should I eat below my BMR for weight loss?
A: No, you should never eat below your BMR. Your BMR represents the minimum calories needed for basic bodily functions. Create a deficit from your total daily energy expenditure (TDEE), not your BMR.

Q3: How often should I recalculate my BMR?
A: Recalculate whenever your weight changes significantly (2-3 kg) or every 4-6 weeks during weight loss to adjust your calorie targets accordingly.

Q4: Does muscle mass affect BMR?
A: Yes, muscle tissue burns more calories at rest than fat tissue. Increasing muscle mass through strength training can help raise your BMR over time.

Q5: How do I use BMR for weight loss planning?
A: Multiply your BMR by an activity factor to get your TDEE, then create a moderate calorie deficit (typically 500 calories daily) for sustainable weight loss of about 0.5kg per week.