Cost of Owning a Dog Calculator · filed Oct 11, 2026
Dog vs cat: which costs more?
Per year, the dog costs far more. Over a lifetime, the gap nearly disappears — because the cat keeps billing for years after the dog is gone.
Modeled 2025 study figures: a dog costs about $3,455 a year versus $2,011 for a cat — roughly 72% more. Over a lifetime: $34,550 (10-year dog) versus $32,170 (16-year cat) — only $2,380 apart.
The yearly comparison (2025 modeled study)
Where the yearly gap comes from
Why the lifetime gap is so small
The cat lives about six years longer. Six extra years at $2,011 a year is $12,066 — nearly the entire yearly-gap advantage back. Annualizing a pet budget is honest about cash flow; the lifetime number is honest about the commitment.
The honest bottom line
If the question is monthly cash flow, the dog is the expensive pet. If the question is total commitment, the two land within a few thousand dollars of each other over a full life — and the cat asks for that money over more years, which is its own kind of cost.