Weight change needs a vet plan
Do not crash-diet a dog or use this calculator to treat obesity, illness, pregnancy, nursing, or growth problems. Ask your veterinarian for a target weight and food plan.
Matchapup
Calorie calculator
Dog Calorie Calculator
Estimate daily calories using the veterinary RER framework, then adjust with a life-stage factor and treat budget. This is a planning estimate, not a prescription or weight-loss plan.
Estimate daily calories with RER and life-stage factors
Tune weight, life stage, and treats
Treats count too
Chews, training treats, toppers, table scraps, and pill pockets all count toward daily calories. Small extras can erase a careful meal plan.
Sources
Reviewed and maintained by Phoenix Okendo
Calculator estimates are educational planning tools, not veterinary, financial, or professional advice. Matchapup keeps these tools tied to sourced care assumptions, visible caveats, and the broader breed-fit context so readers can plan better questions for their veterinarian, groomer, trainer, rescue, or breeder.
Frequently asked questions
How many calories does my dog need per day?
The default Matchapup estimate is 984 kcal per day for a 40 lb neutered adult dog, starting from a 615 kcal resting energy requirement. Real needs vary by body condition, activity, age, medical history, and food.
What is RER for dogs?
RER means resting energy requirement. It estimates baseline energy needs before life-stage and activity factors are applied, so it is a starting point rather than a complete feeding plan.
Can I use this calculator for dog weight loss?
Use it only for planning and conversation. Weight loss, obesity, illness, pregnancy, nursing, and puppy growth should be managed with a veterinarian who can set safe targets.
Food fit is lifestyle fit.
Calories connect to size, energy, training treats, cost, and daily routine. Use this estimate as one part of choosing a dog you can feed and care for consistently.