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How much should your dog actually eat?
The feeding chart on the bag is a rough average, and over half of dogs in the US are overweight. This uses the same resting energy formula vets use, adjusted for your dog's life stage, then converts it to cups of your specific food. Everything runs in your browser, nothing is saved or sent anywhere.
Math: resting energy is 70 times weight in kilograms to the 0.75 power, multiplied by a life-stage factor, with about 10 percent of calories reserved for treats when selected. Split the total across your dog's usual meals.
The bag chart problem
Feeding charts on bags are ranges written for the average dog, and every owner reads them generously. A spayed 25 pound dog who mostly naps needs meaningfully fewer calories than the same dog intact and running daily, but the bag prints one row for both. Calories per cup also vary wildly between brands, from about 300 to over 500, so "one cup" means nothing without reading your bag.
The best check is your hands, not the cup: you should feel ribs easily under a thin layer, and see a waist from above. Adjust portions a little at a time and weigh in monthly.
General guidance, not veterinary advice. Puppies of giant breeds, pregnant or nursing dogs, and dogs with medical conditions need portions set by a vet.
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