Dog Food Cost Calculator
Estimate how many calories your dog needs each day, and what that translates to in monthly food cost based on the type of food you feed. Want feeding notes for a specific breed? See ourdog breed guides.
How to use it: pick a breed (optional, auto-fills a typical weight) or enter your dog's actual weight, choose their life stage/activity level and food type, then hit calculate. Use your dog's real measured weight if you have it — it's always more accurate than a breed average.
Estimate only. Actual needs vary by breed, metabolism, and product — always follow your food's feeding guide and your vet's advice.
Fresh and premium formulas can cost more but may reduce feeding volume
Fresh and gently-cooked diets are more calorie-dense per pound in some formulations, which can offset the higher sticker price. Browse options to compare against your dog's numbers above.
Browse dog food on Amazon(affiliate link)How much does breed actually move the premium?
Breed is the single biggest factor in what you will be quoted. See the breed-by-breed differences before you start comparing providers.
See pet insurance cost by breedHow this calculator works
We estimate your dog's Resting Energy Requirement (RER) using the standard veterinary formula RER = 70 × (weight in kg)^0.75, then multiply by an activity factor for their life stage to get Maintenance Energy Requirement (MER) in calories per day. We divide that by the typical caloric density of your chosen food type to estimate daily feeding amount, then multiply by your price per pound to estimate monthly cost.
How much does dog food cost per month?
It depends heavily on your dog's size and the food type, which is why a single average number (often quoted as "$30-$60/month") is misleading — the calculator above gives a number based on your actual dog rather than a population average. As a rough range: a small dog on dry kibble often costs $20-$35/month, a large dog on dry kibble $50-$90/month, and fresh or subscription-style food (like the plans sold by Lyka, NomNomNow, or The Farmer's Dog) typically runs 2-4x more than dry kibble for the same dog, because it's priced per pound of fresh product rather than calorie-dense dry matter. If you're comparing a subscription quote against kibble, plug your dog's weight into the calculator above and switch "Food type" to "Fresh-cooked" to get a comparable estimate.
How accurate is it?
The RER/MER formula is a real, veterinary-standard starting point, not a precise prescription — it estimates population-average energy needs, and individual dogs can reasonably run 20-30% above or below that depending on metabolism, breed, and how active they actually are day to day. Food cost is also sensitive to the price you enter: the default per-pound prices are rough market averages, so swapping in your actual product's price (from the bag or your last order) will always beat the default. Treat the result as a solid planning estimate, then adjust based on how your dog's body condition looks after a few weeks at that amount.
Data sources
The RER/MER calorie formula and activity multipliers follow the WSAVA Global Nutrition Guidelines, the veterinary-endorsed standard for estimating canine energy needs. Breed weight auto-fill values reflect commonly published breed-standard weight ranges (AKC and veterinary breed references); your dog's actual weight — measured, not estimated — will always be more accurate than a breed average.
Frequently asked questions
Why does neuter status change my dog's calorie needs?
It's a real, documented metabolic effect, not a minor adjustment — spaying/neutering lowers a dog's resting metabolic rate, which is why the calculator uses a noticeably lower activity multiplier (1.6x) for neutered adults than intact adults (1.8x). Feeding a neutered dog like they're still intact is a common, quiet cause of gradual weight gain.
Is the RER/MER formula the same one vets actually use?
Yes — Resting Energy Requirement (RER = 70 × weight in kg^0.75) and the life-stage activity multipliers applied on top of it follow the WSAVA Global Nutrition Guidelines, the veterinary-endorsed standard for estimating canine energy needs. This is the same underlying math a vet or veterinary nutritionist would use as a starting point before adjusting for an individual dog.
Why is fresh or raw food so much more expensive per pound than kibble?
Because it's priced per pound of a much less calorie-dense product. Dry kibble is roughly 1,700 kcal/lb, while fresh-cooked food is closer to 600 kcal/lb — so a dog needs to eat close to three times as much fresh food by weight to get the same calories, and that food also costs more per pound to begin with. The two effects compound, which is why subscription fresh diets often run 2-4x the monthly cost of kibble for the same dog.
How accurate is this compared to the feeding guide on my dog's food bag?
They're both estimates built on the same type of formula, so expect them to be in the same ballpark rather than identical — bag feeding guides are usually calculated for that specific food's calorie density and often skew toward slight overfeeding (it sells more food). If the two disagree by a lot, that's worth a second look at your dog's actual body condition with your vet rather than assuming either number is exactly right.
Does breed affect calorie needs beyond just body weight?
Weight is doing most of the work in the RER formula, but very high-drive working breeds (Border Collies, working-line German Shepherds) can genuinely need more than the standard activity multiplier suggests if they're doing real physical work, not just exercise. The activity-level dropdown is where you account for that — pick "very active/working dog" rather than relying on breed selection alone to capture it.