Use this dog calorie calculator to convert your pup's weight into a daily energy estimate using the RER formula vets rely on.
Estimated daily calories
Calculated using the Resting Energy Requirement (RER = 70 x kg^0.75) multiplied by the adult factor.
Healthy adult dog with a typical activity level.
Tip: Check your dog food label to see how many calories are in one cup or serving.
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We start with the veterinary Resting Energy Requirement: RER = 70 x (weight in kg^0.75). This estimates how many calories a resting dog needs for essential functions. We then multiply by a life-stage factor to account for growth, age, or athletic output.
Breed, metabolism, body condition, weather, and daily exercise can shift your dog's calorie requirements. Always discuss changes with your veterinarian, especially if you notice weight gain, loss of muscle, or appetite changes. You can also estimate your dog's life stage using our Dog Age Calculator.
Use this as a quick reference, then fine-tune based on your vet's guidance and your dog's body condition.
| Weight | Adult (1.6x) | Puppy (3x) |
|---|---|---|
| 10 lbs / 4.5 kg | ~220 kcal | ~410 kcal |
| 25 lbs / 11 kg | ~580 kcal | ~1,050 kcal |
| 40 lbs / 18 kg | ~930 kcal | ~1,670 kcal |
| 65 lbs / 29 kg | ~1,430 kcal | ~2,560 kcal |
Already know your dog's calories and want the portion size? Use the Dog Feeding Calculator to translate energy needs into cups per day and per meal.
A dog's daily calorie needs depend on weight, age, and activity level. Veterinarians typically estimate needs using the Resting Energy Requirement (RER) formula and then adjust for life stage.
Yes. Growing puppies require significantly more calories per pound of body weight to support development.
Calorie needs should be adjusted gradually and ideally with guidance from a veterinarian so you maintain healthy body condition.
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