Calorie Calculator Based On Weight

Calorie Equation:

\[ Calories = (10 \times weight + 6.25 \times height - 5 \times age - 161) \times activity\_factor \text{ for women} \]

Weight:

Height:

Age:

years

Gender:

Activity Factor:

Estimated Daily Calories:

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1. What is the Calorie Calculator?

The Calorie Calculator estimates your daily energy needs based on your weight, height, age, gender, and activity level. It uses the Mifflin-St Jeor Equation, which is currently considered the most accurate for estimating basal metabolic rate (BMR).

2. How Does the Calculator Work?

The calculator uses the following equations:

\[ \text{Female: } BMR = (10 \times weight + 6.25 \times height - 5 \times age - 161) \] \[ \text{Male: } BMR = (10 \times weight + 6.25 \times height - 5 \times age + 5) \] \[ \text{Daily Calories} = BMR \times Activity Factor \]

Where:

\( weight \) — Weight in kilograms
\( height \) — Height in centimeters
\( age \) — Age in years
\( Activity Factor \) — Multiplier based on activity level

3. Importance of Calorie Calculation

Details: Knowing your daily calorie needs helps with weight management, whether your goal is to lose, gain, or maintain weight. It provides a scientific basis for planning your diet.

4. Using the Calculator

Tips: For accurate results, measure your weight and height precisely. Choose the activity factor that best matches your typical weekly exercise routine.

5. Frequently Asked Questions (FAQ)

Q1: How accurate is this calculator?
A: The Mifflin-St Jeor Equation is about 90% accurate for most people, but individual variations in metabolism can affect results.

Q2: Should I eat exactly this number of calories?
A: This is an estimate. Adjust based on your weight changes and how you feel. Consult a dietitian for personalized advice.

Q3: How often should I recalculate my needs?
A: Recalculate whenever your weight changes significantly (5+ kg) or your activity level changes substantially.

Q4: Why is gender a factor in the calculation?
A: Men typically have more muscle mass and less body fat than women of the same weight, which affects metabolic rate.

Q5: Can I use this for weight loss?
A: Yes, subtract 300-500 calories from your maintenance calories for gradual weight loss (about 0.5kg per week).