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Health Calculators

18 free health calculators: daily calories and macros, calorie deficit, body mass index, body fat percentage, ideal weight, water intake, steps, walking and running, heart rate zones, intermittent fasting, and sugar in drinks. We calculate using the same formulas as the YaYo app.

Check any product in seconds

Point your camera at the barcode or ingredient list — YaYo shows a score, sugar in spoonfuls, and explains every ingredient. Tailored to your allergies.