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Calculators.
Evidence-based tools to figure out where you are and where you could be. Everything runs in the browser — your numbers never leave the page.
4 calculators
BMIGLP-1 projectionTDEEProtein
Where do you fall on the BMI scale?
Calculate your body mass index, see the category, and the health-risk context behind each range.
What 12 months on a GLP-1 looks like.
Model your month-by-month loss on semaglutide or tirzepatide, drawn from STEP 1 and SURMOUNT-1 trial data.
How many calories does your body actually burn?
Find your maintenance, cut, and mild-bulk calorie targets using the Mifflin-St Jeor equation.
How much protein do you actually need?
Get your daily protein target by body weight, activity level, and phase — including the higher range that helps preserve lean mass on a GLP-1.