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Pet Cost Calculator

Annual and lifetime cost of owning a dog or cat, by size, food, vet care, and insurance.

🔒 Runs entirely in your browser — nothing here is ever uploaded

Last reviewed 2026-08-31

About the Pet Cost Calculator

Estimates the first-year, ongoing annual, and lifetime cost of owning a dog or cat — food, routine vet care, grooming, supplies, and optional pet insurance — adjusted for pet size.

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How to use it
  1. Choose your pet type and size.
  2. Adjust any category to match your own actual or expected costs.
  3. Choose whether to include pet insurance, and set an expected lifespan.
  4. Read the first-year, ongoing annual, and lifetime cost estimates.
Formula
Ongoing annual cost = food + routine vet care + grooming + supplies & misc. + pet insurance (if selected). First-year total = ongoing annual cost + one-time setup cost. Lifetime cost = one-time setup cost + (ongoing annual cost × expected lifespan in years).
Worked example

A medium dog with no insurance: $660 food + $300 grooming + $450 vet + $250 supplies = $1,660/year ongoing, plus a $450 one-time setup cost = $2,110 in year one. Over a 12-year lifespan: $20,370 lifetime.

Annual cost defaults by pet type & size
Annual cost defaults by pet type & size
PetFoodVet careGroomingSupplies
Dog — small$360$350$150$200
Dog — medium$660$450$300$250
Dog — large$1,020$600$450$300
Cat — small/slim$250$250$60$200
Cat — medium$320$300$90$220
Cat — large/overweight$420$350$130$250
Interpreting your result

These are illustrative national-average estimates synthesized from several industry cost-of-ownership sources, not a single official dataset. Unexpected costs (an emergency surgery, a chronic condition) aren't included in 'routine vet care' — that's the gap pet insurance or a dedicated emergency fund is meant to cover.

Recommendations
  • Size affects food and vet cost the most for dogs.
  • Routine vet care here means checkups, vaccines, and preventive treatments — it excludes emergency or chronic-condition costs.
  • The one-time setup cost only applies in year one.
Frequently asked questions
Dog breeds range from a few pounds to well over 100 — food and often medication dosing scale with body weight. Cats have a much narrower natural size range.
See the full methodology and sources for every finance calculator
Disclaimer

Illustrative estimate only, not financial or tax advice. Verify figures with a licensed adviser or your local tax authority.