5 Core Calculators

Metabolism & Diet

Evidence-based mathematical models for caloric expenditure, estimated thermogenesis, nutrient partitioning, and fasting physiology.

5 Educational Calculators in this Suite

Select any calculator below to open its dedicated analytics console.

All 19 Tools

5 min readCore Metric

TDEE & Daily Calorie Burn Calculator

Estimate your Total Daily Energy Expenditure (TDEE) and basal metabolic rate using published Mifflin-St Jeor and Katch-McArdle equations.

TDEE = BMR × Physical Activity Level (PAL)Calculate

6 min readNutrition Suite

Advanced Macronutrient & Macro Split Estimator

Estimate balanced protein, carbohydrate, and dietary fat ratios tailored to fat loss, muscle hypertrophy, or ketogenic protocols.

Caloric Budget = (Protein × 4 kcal) + (Carbohydrate × 4 kcal) + (Fats × 9 kcal)Calculate

5 min readClinical Comparison

Basal Metabolic Rate (BMR) Comparative Calculator

Side-by-side comparative analysis of Mifflin-St Jeor, Revised Harris-Benedict, Katch-McArdle, and Schofield WHO equations.

Comparative matrix across 4 clinical BMR prediction methodologiesCalculate

5 min readAnabolic Optimization

Protein Intake Timing & Distribution Calculator

Optimize Muscle Protein Synthesis (MPS) by calculating per-meal leucine thresholds, meal distribution frequency, and nocturnal micellar casein.

Per-Meal Dose = 0.40 - 0.55 g/kg | Leucine Threshold = 2.7 - 3.2g per bolusCalculate

7 min readBody Recomposition

Body Recomposition & Caloric Surplus/Deficit Planner

Plan concurrent adipose reduction and skeletal muscle hypertrophy with periodized caloric budgeting and high-protein partitioning.

Iso-caloric to Mild Deficit (-10% to 0%) + Protein at 2.2 - 2.6 g/kgCalculate

Physiological Foundations: Metabolism & Diet

Scientific standards, published formulas, and estimated parameters

Calculators within the Metabolism & Diet category are based on published sports science formulas and population cohorts. All mathematical models run client-side to protect your personal privacy without requiring server-side storage.

Review published citations & scientific methodology