How much does a pet rat cost?
Rats are smart, friendly and usually kept in pairs or small groups. Mice and gerbils cost even less to buy, but every small pet needs a good cage and a vet who sees them.
Last updated: October 2026 · US prices · 2 sources · see sources
Quick answerPet rats cost about $12 at PetSmart or $30–$100 from a breeder. Supplies run $100–$300 and care is about $25–$35 a month. Mice and gerbils cost $7.99–$21.99 at PetSmart.
Prices at a glance
| Item | Typical US price | Src |
|---|---|---|
| PetSmart fancy rat | $11.99 | [1] |
| PetSmart fancy mouse | $7.99 | [1] |
| PetSmart gerbil | $21.99 | [1] |
| Rat from a breeder | $30–$100 | [2] |
| Rat supplies (cage and basics) | $100–$300 | [2] |
| Rat care, per month | $25–$35 | [2] |
| Rat health care, per year (each) | $100–$150 | [2] |
| Rat, yearly total | $400–$500 | [2] |
Ranges come from the sources below, and each measures something a little different (store prices, surveys or budgets). Prices vary by area, so check locally before you commit.
Rats do best in company
Health care for one rat runs about $100–$150 a year, and most people keep more than one [2]. Multiply the per-rat costs by the size of your group.
Ways to save
- Spend on the cage, not the animal Supplies ($100–$300) are the main upfront cost [2].
- Find a small-pet vet early See exotic vet costs.
Common questions
How much does a pet rat cost?
PetSmart lists fancy rats at $11.99. Breeders charge $30–$100. Plan $100–$300 for supplies.
How much does a pet rat cost per month?
About $25–$35 a month, or $400–$500 a year.
How much do mice and gerbils cost?
At PetSmart, a fancy mouse is $7.99 and a gerbil is $21.99.