Calorie Requirement (BMR / TDEE) Calculator
Estimate basal metabolic rate (BMR) and total daily energy expenditure (TDEE) based on your body measurements and activity level.
Choose the option that best matches most days of your week. If you’re unsure, start with Sedentary or Light.
Daily calorie estimate
Enter your age, height, and weight to see your calorie estimate.
How it works
- Uses the Mifflin-St Jeor formula to estimate BMR.
- Applies an activity multiplier to estimate TDEE.
- Helps set a baseline for nutrition planning.
Understanding your results
This calculator provides two numbers: BMR and TDEE. BMR estimates the calories your body needs at rest for basic functions. TDEE adjusts BMR by your activity level to estimate your day-to-day calorie needs.
What is BMR?
BMR (Basal Metabolic Rate) is an estimate of the calories needed to maintain vital functions at rest. It is often used as a baseline when planning nutrition and weight goals.
- Useful for understanding your baseline energy needs
- Can change with age, weight, and body composition
- Best interpreted with clinical context
What is TDEE?
TDEE (Total Daily Energy Expenditure) estimates how many calories you burn per day, based on activity level. It can help guide nutrition planning for maintaining, losing, or gaining weight.
- Higher activity increases TDEE
- Useful for setting realistic calorie targets
- Estimates vary person to person
How doctors and clinics use calorie estimates
Calorie estimates can support nutrition counselling and goal-setting discussions. In clinic settings, they are typically interpreted alongside medical history, measurements, and patient goals.
Frequently asked questions
BMR is the number of calories your body needs at rest for basic functions.
TDEE is BMR multiplied by an activity factor to estimate daily calorie needs.
This calculator uses the Mifflin-St Jeor equation for BMR.
Results are estimates and should be tailored with professional guidance.
Choose the option that best reflects most days of your week. If unsure, start with Sedentary or Light and adjust if needed.
Yes. Calorie needs can change with age, weight changes, training routines, pregnancy, and medical conditions.
Many people start with their TDEE and adjust gradually depending on goals, often by a modest daily change such as 300–500 kcal, then monitor and adjust.
See how EazyClinic works for your clinic
Book a short walkthrough to see how EazyClinic helps clinics document consultations, track measurements, generate patient-friendly documents, and streamline billing and records.
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