How Many Calories Should I Be Eating Calculator

Calories Needed:

Introduction: Understanding the number of calories your body needs is crucial for maintaining a healthy lifestyle. This calculator helps determine the daily calorie intake required based on factors such as weight, height, age, gender, and activity level.

Formula: The calculator uses the Harris-Benedict equation to estimate Total Daily Energy Expenditure (TDEE), adjusting for gender and activity level. The formula is: TDEE=(Weight×Calories per Pound)+(6.25×Height)−(5×Age)+Gender Adjustment×Activity Level AdjustmentTDEE=(Weight×Calories per Pound)+(6.25×Height)−(5×Age)+Gender Adjustment×Activity Level Adjustment

How to Use:

  1. Enter your current weight in pounds.
  2. Enter your height in inches.
  3. Enter your age in years.
  4. Select your gender.
  5. Select your activity level.
  6. Click the “Calculate” button.
  7. View the estimated calories needed per day in the result section.

Example: For instance, a 25-year-old male with a weight of 160 lbs, a height of 70 inches, and a moderately active lifestyle might need around 2,500 calories per day.


  1. Q: Can this calculator be used for weight loss or gain?
    • A: Yes, it provides an estimate of daily calorie needs, which can be adjusted for weight loss or gain goals.
  2. Q: How accurate is this calculator?
    • A: It offers estimates. Individual factors may vary. Consult with healthcare professionals for personalized advice.
  3. Q: Why does the calculator ask for gender and activity level?
    • A: These factors significantly impact energy expenditure, providing a more accurate estimate.
  4. Q: Should I strictly follow the result for my diet?
    • A: It offers insights but individual nutritional needs vary. Consult with healthcare professionals or a nutritionist for personalized advice.
  5. Q: How often should I recalculate my calories?
    • A: Periodic recalculations are advisable, especially with significant changes in weight or activity levels.

Conclusion: Understanding your body’s calorie needs is vital for a balanced and healthy lifestyle. While this calculator provides estimates, it’s important to consider individual variations and consult healthcare professionals for personalized advice on diet and nutrition.

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