Pet Cost Calculator
Calculate the true monthly and annual cost of owning a pet. Enter food, vet, grooming, insurance, and boarding costs to see your full pet budget — including a.
Added May 11, 2026
Input
Result
Enter a value for food & treats (monthly) to see your result.
How it works
Estimates the true monthly and annual cost of owning a pet by summing food, vet care, grooming, insurance, supplies, boarding, and other expenses. Illustrative only — actual costs vary by pet type, breed, age, location, and health status.
Formula
Monthly cost = Monthly items + (Annual items ÷ 12)
- Monthly items
- Food + grooming + insurance + other recurring monthly expenses
- Annual items ÷ 12
- Vet + supplies + boarding converted to a monthly contribution
Step by step
- 01Enter all recurring monthly costs: food & treats, grooming, pet insurance, and any other monthly expenses.
- 02Enter annual costs (vet visits, supplies, boarding) — the calculator divides these by 12 to get a monthly contribution.
- 03Total monthly cost is the sum of all monthly items plus converted annual items.
- 04Multiply by 12 for the annual figure and by your projection years for the estimated lifetime cost.
Examples
Medium dog — typical costs
A medium dog costs roughly $300–$350/month before unexpected vet bills — about $3,500–$4,200/year over a typical lifespan.
Inputs
- Food & treats (monthly):
- 80
- Vet & medical (annual):
- 600
- Grooming (monthly):
- 60
- Pet insurance (monthly):
- 45
- Supplies & toys (annual):
- 250
- Boarding & pet-sitting (annual):
- 600
- Other monthly costs:
- 0
- Project over:
- 12
Result
- Total monthly cost:
- $306.67 / month
- Total annual cost:
- $3,680.00 / year
Indoor cat — low-maintenance
An indoor cat with no grooming costs roughly $120–$130/month — one of the most affordable common pets.
Inputs
- Food & treats (monthly):
- 40
- Vet & medical (annual):
- 350
- Grooming (monthly):
- 0
- Pet insurance (monthly):
- 25
- Supplies & toys (annual):
- 150
- Boarding & pet-sitting (annual):
- 200
- Other monthly costs:
- 0
- Project over:
- 15
Result
- Total monthly cost:
- $123.33 / month
- Total annual cost:
- $1,480.00 / year
Frequently asked questions
How much does it cost to own a dog per month?
The average cost of owning a dog ranges from $150 to $500+ per month depending on size, breed, and location. A small dog typically costs $150–$250/month; a large breed can exceed $400/month once food, vet care, grooming, and boarding are included.
How much does it cost to own a cat per month?
Cats are generally less expensive than dogs, averaging $80–$200/month. An indoor cat with no grooming needs can cost as little as $80–$120/month; a cat requiring specialist vet care or premium food can reach $200+ monthly.
Should I get pet insurance?
Pet insurance typically costs $25–$70/month for cats and $35–$120/month for dogs. It makes financial sense if you want predictable costs and protection against large unexpected bills — emergency surgery can cost $1,000–$10,000+. Compare the annual premium to your deductible and maximum benefit before deciding.
What costs are not included in this calculator?
One-time upfront costs are not included: adoption or purchase fees ($50–$3,000+), spay/neuter surgery ($200–$500), initial vaccinations, microchipping, and starter supplies (crate, bed, collar, litter box). Budget an extra $500–$2,000 for the first year on top of ongoing costs.
What is a pet emergency fund?
A pet emergency fund is money set aside for unexpected vet bills — injuries, illnesses, or surgeries outside your routine budget. Most vets recommend keeping at least $1,000–$3,000 accessible per pet. Without insurance or an emergency fund, a single unexpected visit can cost thousands.
How do I use the 'project over X years' field?
Set this to your pet's expected remaining lifespan to see the total lifetime cost. Dogs live an average of 10–15 years; cats 12–18 years; small pets like rabbits 5–10 years. This helps you plan long-term and compare the full financial commitment of different pet types.