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Check Your Health Org Eat Healthy Cal Calculator

Reviewed by Calculator Editorial Team

This calculator helps you determine your daily calorie needs based on your age, gender, weight, height, and activity level. By tracking your intake against these needs, you can make informed decisions about your diet and health.

How to Use This Calculator

To use the Eat Healthy Cal Calculator:

  1. Enter your age in years
  2. Select your gender (male or female)
  3. Enter your weight in pounds or kilograms
  4. Enter your height in inches or centimeters
  5. Select your activity level from the dropdown menu
  6. Click "Calculate" to see your results

The calculator will display your Basal Metabolic Rate (BMR) and Total Daily Energy Expenditure (TDEE), which represent your daily calorie needs at rest and with activity, respectively.

Formula Used

The calculator uses the Mifflin-St Jeor equation to estimate calorie needs:

For men: BMR = (10 × weight in kg) + (6.25 × height in cm) - (5 × age in years) + 5 For women: BMR = (10 × weight in kg) + (6.25 × height in cm) - (5 × age in years) - 161 TDEE = BMR × activity multiplier

The activity multipliers are:

  • Sedentary: 1.2
  • Lightly active: 1.375
  • Moderately active: 1.55
  • Very active: 1.725
  • Extra active: 1.9

Note: These formulas provide estimates. Individual calorie needs may vary based on genetics, muscle mass, and other factors.

Worked Example

Let's calculate the daily calorie needs for a 30-year-old woman who weighs 150 pounds (68 kg), is 5'5" (165 cm) tall, and is moderately active.

  1. Convert weight to kg: 150 lbs × 0.453592 = 68 kg
  2. Calculate BMR:
    BMR = (10 × 68) + (6.25 × 165) - (5 × 30) - 161 BMR = 680 + 1031.25 - 150 - 161 BMR = 1400.25 kcal/day
  3. Calculate TDEE with activity multiplier 1.55:
    TDEE = 1400.25 × 1.55 = 2170.38 kcal/day

This woman should consume approximately 2,170 calories per day to maintain her weight.

Interpreting Results

Your BMR represents the calories your body needs to maintain basic functions at rest. Your TDEE accounts for physical activity and is a better estimate of your total daily calorie needs.

To lose weight, consume fewer calories than your TDEE. To gain weight, consume more. For moderate weight loss, aim for a 500-calorie deficit per day.

Consult with a healthcare professional before making significant changes to your diet or exercise routine.

Frequently Asked Questions

Is this calculator accurate for everyone?
The formulas provide estimates. Individual calorie needs may vary based on genetics, muscle mass, and other factors.
How often should I use this calculator?
You can use it whenever you need to check your calorie needs, especially after significant changes in weight, height, or activity level.
Can I use this for weight loss?
Yes, by consuming fewer calories than your TDEE, you can create a deficit for weight loss.
What if I'm pregnant or breastfeeding?
Pregnant and breastfeeding women have higher calorie needs. Consult a healthcare professional for personalized advice.
How do I track my intake?
Use food labels to track calories, or consider using a nutrition tracking app to monitor your daily intake.