Nutrition & Logging
Track macronutrients, plan calorie intake, and log nutrition data with conversion tools and goal-based calculators.
29 calculators available
Fasting Progress Tracker
Log your fasting days, track weight trends, monitor streaks, and review adherence over time. All data stored locally in your browser.
Vegan Protein Calculator
Calculate daily plant-based protein needs with PDCAAS/DIAAS digestibility adjustment, per-meal targets, lysine requirements, and complementary protein pairing guide.
Water Fasting Weight Loss Calculator
Estimate daily weight change during a water-only fast with fat vs water breakdown, metabolic phase tracking, and post-refeed projection.
5:2 & 4:3 Calorie Cycling Calculator
Plan your weekly calorie cycling schedule with the 5:2 or 4:3 protocol. Normal and restricted day calories, macro breakdowns, and a visual 7-day schedule.
Zig-Zag Calorie Calculator
Create a calorie cycling plan with high, medium, and low calorie days using Mifflin-St Jeor BMR. Aligns with your training schedule for weekly calorie budgets.
Caffeine Intake Calculator
Track daily caffeine intake from 20+ sources. See mg/kg ratio, compare to the 400 mg reference, and get personalized pre-workout dose ranges based on ISSN research.
Serving Size Calculator
Estimate serving sizes using the hand-portion method, household measures, and a 30+ food reference table. Build meals and track portions with macro estimates.
Caffeine Half-Life Calculator
Track your caffeine levels over 24 hours with multi-dose support, adjustable half-life, threshold tracking, and 17-source caffeine reference.
Calorie Deficit Calculator
Calculate your TDEE, daily calorie target, and projected timeline to reach your target weight with macro split recommendations.
Calorie Intake Calculator
Find out how many calories you need per day. Goal-adjusted calorie estimator using Mifflin-St Jeor, Harris-Benedict, and Katch-McArdle formulas.
Calorie Surplus Calculator
Estimate your daily calorie surplus target with Mifflin-St Jeor TDEE, 3 surplus rates, optimized macro split, and 16-week timeline projection.
Carb Calculator
Calculate daily carbohydrate intake by weight, calories, and activity goal. DRI and ACSM-based ranges with fiber targets and food references.
Fat Intake Calculator
Calculate your daily fat intake range based on IOM AMDR guidelines. Get total fat, saturated fat limit, per-meal targets, and essential fatty acid recommendations.
Food Points Calculator
Convert food nutrition into a simplified point score using a generic public-domain formula. Includes meal logger, daily budget guide, and 25-food reference.
Keto Calculator
Calculate your daily keto macros with TDEE, 3 keto presets (standard/moderate/liberal), adjustable carb limit, and 30-food keto reference table.
Macro Calculator
Calculate your custom macronutrient split with 7 presets or your own ratios. Get daily gram targets and per-meal breakdown for protein, carbs, and fat.
Net Carbs Calculator
Calculate net carbs by subtracting fiber and sugar alcohols. Includes 6 sugar alcohol impact factors, meal builder, keto badge, and 30-food reference table.
Protein Calculator
Calculate daily protein intake by body weight, activity level, and goal. ISSN-based ranges with per-meal targets and 20+ food references.
Sodium in Salt Calculator
Convert between salt and sodium using the NaCl 40% formula. Compare against WHO, AHA, and DGA daily limits with a 20-food sodium reference.
BCAA Dosage Calculator
Calculate your daily BCAA needs based on the 85 mg/kg research formula. 2:1:1 ratio breakdown, leucine threshold check, protein adequacy assessment, and food sources comparison.
BEE Calculator — Basal Energy Expenditure
Compare Original Harris-Benedict, Revised Harris-Benedict, and Mifflin-St Jeor BEE formulas. Activity and energy demand multipliers with weekly projections.
Body Recomposition Calculator
Calculate calorie cycling targets for simultaneous fat loss and muscle gain with training/rest day macros, feasibility scoring, and 12-week projections.
Intermittent Fasting Calculator
Plan your intermittent fasting schedule with personalized eating windows, calorie and macro targets, meal timing, and protocol comparison.
Sugar Intake Calculator
Calculate personalized daily sugar limits from WHO and AHA guidelines with intake comparison and 15+ common food sugar reference.
Carb Cycling Calculator — High/Medium/Low Day Macro Planner
Plan your carb cycling schedule with personalized macro breakdowns for high, medium, and low carb days. Calculate TDEE, set goals, and use pre-built templates.
Creatine Dosage Calculator
Calculate personalized creatine monohydrate loading and maintenance doses based on body weight or lean body mass. Includes LBM-based precision dosing, phase timeline, and vegetarian/vegan adjustments.
Creatine Water Intake Calculator
Calculate total daily water needs when supplementing with creatine. Accounts for baseline, creatine dose, exercise intensity, and climate with a personalized hydration schedule.
Bulking Calories Calculator
Calculate your bulking calorie targets with TDEE, caloric surplus options (lean, standard, aggressive), macro breakdown, training/rest day split, and weight gain projections.
Grams to Calories Calculator
Convert between grams and calories using Atwater factors for protein, carbs, fat, alcohol, and fiber, with a bi-directional mode and meal builder.