How we estimate

Insurance estimates

Each breed is assigned a risk tier (lower / moderate / higher) from its documented health predispositions and the typical severity of the conditions involved. We map that tier onto published US accident-and-illness market rate ranges (NAPHIA industry data and insurer rate tables, 2023–2026) for an adult pet at a baseline of a $5,000 annual limit, $500 deductible and 80% reimbursement. The estimator then adjusts that baseline for your pet’s age band, your chosen deductible, reimbursement % and annual limit, and a modeled state cost-of-living factor (a regional adjustment, not insurer rate filings). Lifetime cost is shown as a lucky–typical–unlucky band because real claims vary. These are modeled estimates for comparison, not quotes. Real premiums also depend on your exact ZIP code and the insurer you choose.

Feeding estimates

We use the veterinary energy model: resting energy RER = 70 × (bodyweight kg)0.75, then a maintenance multiplier (MER) for life stage, neuter status, activity, and weight goal. If you set a body-condition score (1–9), we feed for the ideal weight rather than the current weight — each point away from the ideal 5 is treated as roughly a 10% body-weight difference. Calories are converted to cups using the calorie density you enter, and to grams when you add a grams-per-cup figure. Individual needs vary by metabolism and health, so treat the result as a starting point and confirm with your veterinarian.

Cost-of-ownership estimates

The true-cost calculator separates one-time first-year costs (adoption or breeder price, spay/neuter, the initial vaccine series and microchip, and starter supplies) from recurring annual costs (food, routine vet care, parasite prevention, optional insurance, grooming and everyday extras). Food cost is derived from the same RER/MER calorie model above, converted to pounds of food per year at a typical kibble energy density and a price tier you choose. Vet, prevention, grooming and supply figures are anchored to published 2024–2025 US ranges (ASPCA pet-care cost data, the Synchrony “Lifetime of Care” study, and Rover cost guides) and scaled by your pet’s size, weight, breed lifespan and region. Lifetime cost applies recurring costs across the breed’s typical lifespan; real senior years often run higher. Everything is a planning estimate, not a bill.

Breed data

Weights, sizes, life expectancy, AKC groups, and predisposed conditions are drawn from breed-standard and veterinary references (AKC, CFA/TICA, the Merck Veterinary Manual, VCA, OFA/CHIC, and breed-club health surveys). Current dataset: 171 breeds.