TDEE CALCULATOR
Know the numbers behind your goal.
Most weight loss plans skip a step: figuring out how many calories your body actually needs. This calculator gives you that number — and what it means for any plan you're considering.
- See how many calories your body burns at rest and through daily activity
- Get a realistic deficit target for gradual, sustainable weight loss
- Understand where a clinician-guided plan fits in
This calculator uses the widely-accepted Mifflin–St Jeor equation to estimate calorie needs from population averages. Estimates are educational only — they are not medical or nutritional advice, and individual needs vary. Always talk to a licensed clinician or dietitian before changing your diet, especially if you have a medical condition.
Your daily needs
Enter your details for a personalized estimate
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Calories/day to maintain your weight
Basal metabolic rate (BMR) is estimated with the Mifflin–St Jeor equation; total daily energy expenditure (TDEE) applies a standard activity multiplier. These are population-based estimates and may differ from your actual needs. This tool is educational only and is not medical or nutritional advice, a diagnosis, or a treatment recommendation. Do not use it to self-prescribe a diet. Compounded medications are available by prescription only and are not FDA-approved; whether any treatment is appropriate is determined by an independent licensed provider. Payment does not guarantee a prescription.
What these numbers actually mean
BMR is your baseline.
Your basal metabolic rate is the energy your body uses just to stay alive — breathing, circulation, organ function. It's the floor, before movement or activity enters the picture.
TDEE is your real daily burn.
Total daily energy expenditure adds the calories you burn through movement and daily activity. Eating around this number is roughly where your weight holds steady.
A deficit is how weight loss works.
Eating below your TDEE creates a deficit, and your body draws on stored energy to make up the difference. A modest, steady deficit tends to be more sustainable than an aggressive one.
It's an estimate, not a prescription.
These equations describe population averages — not you specifically. Metabolism, medications, and medical history all affect the real number. A licensed clinician, not a calculator, should guide any actual plan.