TDEE & Macro Calculator by aadifit

Instant TDEE, BMR and macro targets — Mifflin-St Jeor, Katch-McArdle, Harris-Benedict. No sign-up, no tracking, works offline.

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About this extension

A single-popup calculator for TDEE (Total Daily Energy Expenditure), BMR (Basal Metabolic Rate), and macro targets (protein/carbs/fat).

Supports three formulas:
- Mifflin-St Jeor (default, most accurate for most people)
- Katch-McArdle (if you know your body fat %)
- Harris-Benedict

Set your goal (cut, maintain, bulk) and get an instant calorie and macro target. No account, no sign-up, no data leaves your browser — everything runs locally in the popup.

Built on the open-source @aadifit/tdee-calc package (MIT licensed): https://www.npmjs.com/package/@aadifit/tdee-calc

Full tracking with body composition, activity logging and an adaptive coaching plan at https://aadifit.com/tdee-calculator/

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