Know your numbers.
Free calculators for the measurements that matter in weight, metabolism and healthy aging. Numbers are a starting point, not a verdict. A clinician looks at the whole picture.
Body measurements
BMI Calculator
Body mass index from height and weight, one of the factors a clinician considers for GLP-1 treatment.
Open calculator →BMR Calculator
Calories your body burns at complete rest, using the Mifflin-St Jeor equation.
Open calculator →Waist-to-hip Ratio
Where you carry weight matters for cardiometabolic risk. This ratio shows it.
Open calculator →Body Fat Calculator
Estimated body-fat percentage from circumference measurements (U.S. Navy method).
Open calculator →Body Roundness Index
Height and waist only: a newer alternative to BMI that reflects central fat.
Open calculator →Nutrition
TDEE Calculator
Total daily energy expenditure: BMR scaled for your activity level.
Open calculator →Calorie Deficit Calculator
A daily calorie target for a realistic rate of weight loss.
Open calculator →Protein Calculator
How much protein to aim for, to hold on to muscle while losing weight.
Open calculator →Water Intake Calculator
A simple daily fluid target based on your weight and activity.
Open calculator →Your plan starts with one assessment.
About two minutes to complete. A licensed clinician tells you what's appropriate for you.
Start your assessmentNumbers are a start. Here's the context.
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Sermorelin vs Ipamorelin: Which peptide is right for you?
The decline in growth hormone production after the age of 30 is a natural part of aging. This natural shift in hormones can cause fatigue, weight gain, and slower recovery from workouts or injuries.
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Tesamorelin vs Sermorelin: What’s the difference and which works best?
Synthetic growth hormone (HGH) injections can be expensive and may disrupt your body’s natural hormone balance. As a result, many people are now shifting toward growth hormone secretagogues, which work with your body to stimulate the endogenous GH (growth hormone) synthesis.
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Phentermine vs. Ozempic for weight loss: Which is better?
Ozempic (GLP-1 receptor agonist) and Phentermine (the classic stimulant) are commonly used weight loss medications. Ozempic is an FDA-approved GLP-1 agonist for managing type 2 diabetes in adults, cardiovascular risk reduction, and lowering the risk of worsening kidney disease in patients with chronic kidney disease with type 2 diabetes, but your healthcare provider may prescribe Ozempic off-label for weight loss.