Nutrition & Health calculators
Set daily calorie and macro targets and check key health numbers such as kidney function, body surface area and blood alcohol.
Macro splits a calorie target into carbs, protein and fat in one step; Carbohydrate, Protein and Fat Intake each go deeper on just one of those three if that's what you're adjusting. Calorie, BMR and TDEE (shared with Fitness) are the starting point most of these build on.
GFR, Body Surface Area and BAC are different in kind — they're clinical-style estimates (kidney filtration rate, body surface area for medical dosing, blood alcohol) rather than diet planning, and GFR and BAC in particular should be read as general estimates, not a substitute for an actual blood test or breathalyser.
Calorie CalculatorDaily calories to maintain, lose or gain weightBMR CalculatorBasal metabolic rate with three proven formulasMacro CalculatorDaily protein, carbs and fat targets for your goalCarbohydrate CalculatorHow many grams of carbs you need per dayProtein CalculatorDaily protein need, with Indian food equivalentsFat Intake CalculatorDaily fat range and saturated fat limitTDEE CalculatorTotal daily energy expenditure by activity levelGFR CalculatorKidney function (eGFR) with CKD-EPI 2021 and MDRDBody Type CalculatorBody shape (hourglass, pear…) and waist-hip ratioBody Surface Area CalculatorBSA by Mosteller, DuBois, Haycock and moreBAC CalculatorEstimate blood alcohol content (India limit 0.03%)