Free Nutrition Tools & Calculators
Access our collection of free nutrition tools designed for nutritionists, dietitians, personal trainers, and health coaches. Calculate TDEE, macros, recipe nutrition, and download professional meal plan templates.
TDEE Calculator
Calculate Total Daily Energy Expenditure using the Mifflin-St Jeor formula. Get personalized calorie and macro targets.
Macro Calculator
Calculate optimal protein, carbs, and fat intake for any goal. Includes preset diet templates for keto, high-protein, and more.
Recipe Nutrition Calculator
Analyze the nutrition content of any recipe. Calculate calories, macros, and micronutrients per serving.
Meal Plan Templates
Download professional weekly meal plan templates. Includes weight loss, keto, Mediterranean, vegan, and more.
TDEE Calculator (AU/NZ)
TDEE calculator for Australians and New Zealanders. Displays results in kilojoules and follows local dietary guidelines.
Food Nutrition Database
Browse nutrition data sourced from USDA FoodData Central. Detailed macros, vitamins, minerals, and allergen info.
Ideal Body Weight Calculator
Calculate IBW using Devine, Robinson, Miller, and Hamwi formulas. Includes adjusted body weight for clinical use.
Nutrition Label Generator
Create FDA-style nutrition facts labels. Enter nutrition data, add allergens, and download as PNG.
Fiber Calculator
Calculate daily fiber needs by age and gender. Assess intake and get high-fiber food recommendations.
Body Fat Calculator
Calculate body fat percentage using the U.S. Navy method. See health categories and fitness standards.
Percent Weight Change Calculator
Clinical tool for malnutrition screening. Calculate significant weight loss with documentation output.
Mifflin-St Jeor Calculator
Calculate BMR and TDEE using the Mifflin-St Jeor equation. The most accurate formula for the general population.
Katch-McArdle Calculator
Calculate BMR using lean body mass and body fat percentage. Ideal for athletes and fitness enthusiasts.
Schofield Equation Calculator
WHO-recommended BMR calculator using age-specific weight-based equations. Covers all age groups.
TEF Calculator
Calculate the Thermic Effect of Food — how many calories your body burns digesting protein, carbs, and fat.
ROI Calculator
Calculate how much time and money you could save by switching to Foodzilla. See hours saved, revenue impact, and client capacity.
Protein Calculator
Calculate your daily protein needs based on body weight, activity level, and goals. Get per-meal targets and food equivalents.
Calorie Deficit Calculator
Find your optimal calorie deficit for weight loss. Get a personalized plan with daily targets, macros, and projected timeline.
Water Intake Calculator
Calculate daily water needs based on weight, activity, and climate. Includes a personalized hydration schedule.
Why Use Foodzilla's Free Tools?
- Evidence-based formulas — All calculators use validated equations like Mifflin-St Jeor
- Professional quality — Designed specifically for nutrition professionals
- No signup required — Use our calculators instantly, for free
- 100% ad-free — No ads means faster loading and less battery drain on mobile devices
- Mobile-friendly — Works perfectly on any device