Example: 30-year-old male
Inputs
- age
- 30
- gender
- male
- weight
- 70
- height
- 175
- activity
- moderate
Result
Estimated daily calories: approximately 2,617 kcal/day.
Health
Calorie Calculator
Estimate your daily calorie needs based on your age, gender, height, weight and activity level.
Calorie Calculator calculator
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Calorie Calculator
Enter the values below to calculate your result.
years
kg
cm
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Your result will appear here
Enter the required values and click Calculate to see your result.
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How does the calorie calculator work?
Enter your age, gender, weight, height and activity level. The calculator estimates your Basal Metabolic Rate using the Mifflin-St Jeor equation and then applies an activity multiplier to estimate your daily calorie needs.
Formula
BMR = 10 × weight + 6.25 × height − 5 × age + sex adjustment; Daily Calories = BMR × activity multiplierExamples
Example: 30-year-old female
Inputs
- age
- 30
- gender
- female
- weight
- 60
- height
- 165
- activity
- light
Result
Estimated daily calories: approximately 1,922 kcal/day.
About this calculator
A calorie calculator estimates your daily calorie needs based on factors such as age, gender, height, weight and activity level.
The calculator first estimates your Basal Metabolic Rate, or BMR, using the Mifflin-St Jeor equation. It then applies an activity multiplier to estimate your daily calorie requirements.
Your actual calorie needs can vary depending on individual characteristics, body composition, exercise and lifestyle. This calculator provides an estimate and should not be considered a medical or nutritional prescription.
Frequently asked questions
How many calories do I need per day?
Daily calorie needs vary from person to person. They depend on factors such as age, gender, height, weight and activity level.
How does the calorie calculator work?
It estimates your BMR using the Mifflin-St Jeor equation and then multiplies the BMR by an activity factor to estimate daily calorie needs.
What is BMR?
BMR stands for Basal Metabolic Rate. It estimates the energy your body needs to perform essential functions while at rest.
Is the calorie result exact?
No. The result is an estimate. Actual calorie requirements can differ depending on individual characteristics, body composition and daily activity.
What activity level should I choose?
Choose the activity level that most closely matches your usual exercise and daily physical activity. The estimate becomes higher as activity increases.
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