Diet Nutrition
Calculate your Recommended Dietary Allowance (RDA) and Tolerable Upper Intake Level (UL) for key minerals based on your age, sex, and life stage.
Full original guide (expanded)
Diet Nutrition
Browse calculators and resources in this section.
Latest update: 2026-01-26
Calculators
Sugar Intake Calculator — Daily Added & Free Sugars Limits
Calculate your recommended daily sugar limits (added and free sugars) per WHO, AHA, FDA. Log foods and drinks, see teaspoons, %DV, and get guidance to cut back.
Sodium Calculator — Daily Intake, Salt ↔ Sodium Converter
Calculate your daily sodium intake from foods, convert salt (NaCl) to sodium (Na), check % Daily Value, and compare against guideline limits. Accessible, mobile-first tool for diet & nutrition.
Portion Size Calculator – Daily & Per‑Meal Serving Targets
Estimate daily and per‑meal portion sizes for major food groups based on your age, sex, height, weight, activity level, and goal. Includes formulas, methodology, and FAQs.
Vitamin Calculator — Personalized RDAs, AIs & ULs by Age & Sex
Professional vitamin calculator for diet & nutrition. Get age/sex-specific RDAs/AIs, compare your intake, and check against Upper Intake Levels (UL). Includes formulas, glossary, worked example, FAQs, and authoritative sources.
Alcohol Calorie Calculator
Calculate the calories in your alcoholic beverages with our precise and user-friendly Alcohol Calorie Calculator. Stay informed about your intake.
Fat Intake Calculator | Health & Nutrition Tool
Professional fat intake calculator: estimate daily fat grams from calories or body weight using evidence-based ranges. Includes optional TDEE estimator, minimum and recommended ranges, and saturated fat limits.
What Should I Eat for Dinner? Calculator
Discover what to eat for dinner with our interactive and fun dinner calculator.
Keto Macro Calculator
Professional-grade Keto Macro Calculator. Calculate your personalized calories and keto macros (fat, protein, net carbs) using evidence-based formulas (Mifflin–St Jeor / Katch–McArdle), activity level, and goals.
Sugar Calculator — Intake, Beverages, and Blood Glucose Converter
All-in-one sugar calculator: estimate daily added sugar intake and % of WHO/FDA limits, compute sugar in beverages from nutrition labels, and convert blood glucose between mg/dL and mmol/L.
Weight Loss Calculator – Plan Your Calorie Target, Rate & Goal Date
Professional weight loss calculator: estimate BMR, TDEE, safe calorie deficit, weekly loss, and goal-date timeline. Includes formulas, methodology, worked example, and FAQs.
Cat Calorie Calculator
Calculate daily calorie needs for your cat with our accurate and user-friendly Cat Calorie Calculator.
Water Intake Calculator - Calculate Daily Hydration Needs
Calculate your optimal daily water intake based on age, weight, activity level, and climate. Get personalized hydration recommendations in liters and ounces.
Net Carbs Calculator | Health & Nutrition Tool
Use our net carbs calculator to quickly compute net carbohydrates from total carbs, fiber, and sugar alcohols. Keto-friendly, accessible, and mobile-first.
Recipe Nutrition Calculator: Analyze Calories & Macros
Instantly analyze any recipe
Protein Calculator: Calculate Your Daily Intake for Goals
Calculate your optimal daily protein intake based on age, weight, activity level, and fitness goals (fat loss or muscle gain). Scientifically-backed recommendations.
Weight Gain Calculator: Calorie Surplus for Bulking
Calculate the daily calories and macro-nutrient surplus needed to gain weight. Enter your stats, activity level, and goal to get your TDEE and bulking calories.
Mineral Calculator - Calculate Your Dietary Reference Intakes (DRI)
Calculate your Recommended Dietary Allowance (RDA) and Tolerable Upper Intake Level (UL) for key minerals based on your age, sex, and life stage.