Calories Required Per Day Calculator Mayo Clinic

Mifflin-St Jeor Formula:

\[ BMR = (10 \times weight) + (6.25 \times height) - (5 \times age) + s \] \[ Calories = BMR \times activity \]

Weight:

Height:

Age:

years

Gender:

Activity Level:

Daily Calories Required:

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1. What Is The Mifflin-St Jeor Formula?

The Mifflin-St Jeor formula is considered one of the most accurate equations for calculating basal metabolic rate (BMR). It estimates the number of calories your body needs at complete rest, which is then multiplied by an activity factor to determine total daily energy expenditure.

2. How Does The Calculator Work?

The calculator uses the Mifflin-St Jeor formula:

\[ BMR = (10 \times weight) + (6.25 \times height) - (5 \times age) + s \] \[ Calories = BMR \times activity \]

Where:

\( weight \) — Body weight in kilograms
\( height \) — Height in centimeters
\( age \) — Age in years
\( s \) — +5 for males, -161 for females
\( activity \) — Activity multiplier (1.2-1.9)

Explanation: The formula calculates your basal metabolic rate (calories burned at rest), then multiplies by an activity factor to estimate total daily calorie needs.

3. Importance Of Calorie Calculation

Details: Knowing your daily calorie requirements is essential for weight management, whether your goal is to lose, maintain, or gain weight. This calculation forms the foundation of any nutrition plan.

4. Using The Calculator

Tips: Enter your weight in kilograms, height in centimeters, age in years, select your gender, and choose the activity level that best matches your lifestyle. Be honest about your activity level for the most accurate results.

5. Frequently Asked Questions (FAQ)

Q1: How accurate is the Mifflin-St Jeor formula?
A: It's considered one of the most accurate BMR formulas for the general population, with an accuracy of about ±10% for most people.

Q2: Should I use this calculation for weight loss?
A: Yes, this provides a good starting point. For weight loss, subtract 500-750 calories from your maintenance level to lose 0.5-1kg per week.

Q3: How often should I recalculate my calorie needs?
A: Recalculate every 5-10kg of weight change or if your activity level significantly changes.

Q4: Are there limitations to this formula?
A: It may be less accurate for extremely muscular individuals, the elderly, or those with very high body fat percentages.

Q5: What's the difference between BMR and TDEE?
A: BMR is calories burned at complete rest. TDEE (Total Daily Energy Expenditure) is BMR multiplied by your activity level, representing your total daily calorie needs.