Skip to content
14 free calculators

Dog Nutrition calculators

Feeding a dog well starts with its energy need. These calculators use the resting energy requirement (RER) from the WSAVA and NRC guidance, multiply it by a life-stage factor, and turn the result into grams or cups of the food you actually use. Start with the Dog Food Calculator, then check treats, raw feeding or the calories in your kibble.

✔ Vet reviewedFormulas shownMetric & imperialNo sign-up

Every calculator shows its formula and sources, works in metric and imperial units, and gives estimates only. Read how we build and review them in our editorial policy and formulas & sources.