Free nutrition tools,
at your fingertips.
Calculate your needs, search any food, find recipes, and plan your meals — all powered by open data APIs.
Nutrition tools
01 Calorie Calculator
Calculate your BMI, TDEE, daily calorie target, and ideal macro split. Based on the Mifflin-St Jeor equation.
02 Food Lookup
Search any food and get a full nutrition facts breakdown — macros, micros, and daily values. Powered by USDA data.
03 Recipe Finder
Find healthy recipes filtered by diet, calories, and cook time. Full nutrition info and step-by-step instructions.
04 Meal Planner
Generate a personalized 7-day meal plan targeting your calorie goal. Complete with grocery list and nutrition totals.
Why LoseSize?
Open data — All nutrition data from USDA FoodData Central and Spoonacular. No made-up numbers.
No sign-up — Use every tool instantly. No accounts, no tracking, no paywalls.
Shareable cards — Download beautiful nutrition cards to share your results anywhere.