Annual (Year 2+)
Monthly Average
Lifetime (3 yrs)
Emergency Fund /yr
Detailed Cost Breakdown
All amounts are in US Dollars (USD).
One-Time Setup Costs
$91
| Item | Cost | Frequency |
|---|---|---|
| Housing / Enclosure | $46 | One-time |
| Outdoor Run | $30 | One-time |
| Animal Purchase | $15 | One-time |
Monthly Recurring Costs
$50/mo
| Item | Cost | Frequency |
|---|---|---|
| Bedding | $10/mo | Monthly |
| Hay | $6/mo | Monthly |
| Fresh Food | $6/mo | Monthly |
| Enrichment | $6/mo | Monthly |
| Pellets | $5/mo | Monthly |
| Litter | $5/mo | Monthly |
| Dust Bath | $5/mo | Monthly |
Annual Recurring Costs
$600/yr
| Item | Cost | Frequency |
|---|---|---|
| Dental Vet | $57/yr | Annual |
| Routine Vet Visits | $30/yr | Annual |
| Vaccinations | $23/yr | Annual |
Pet Insurance (US, USD)
Monthly premium: $5–$25
Coverage: Accident & Illness
Deductible: 100-500
Already Have the Setup?
If you already have the enclosure, tank, or housing setup, adding a 2nd animal only costs the recurring expenses (food, healthcare, supplies) — no need to buy setup items again.
US (USD) /yr
Where Does the Money Go?
Acquisition
$15
Initial Setup
$76
Food & Nutrition
$192/yr
Healthcare
$110/yr
Supplies
$298/yr
At a Glance
Size Class
Toy
Weight
400 g
Lifespan
3 years
Activity
High
Temperament
Intelligent, social, affectionate
Sociality
Needs a group
Beginner?
Yes
Time Needed
Moderate
Housing Requirements
Housing Type
House with yard
Indoor/Outdoor
Indoor only
Minimum Space
Large cage
Setup Cost
Low
Complexity
Low
Rental Suitable?
Yes
Diet & Feeding
Diet Type
Omnivore
Feeding Frequency
Daily
Food Type
lab blocks + fresh food
Supplements
Yes
Health & Veterinary Care
Common Health Conditions
- Respiratory infections (Mycoplasma)
- Tumors
- Mammary tumors
- Skin issues
Breed-Specific Risks
- Mycoplasma pulmonis
- Mammary tumors
- Pituitary tumors
Vaccinations
Not required
Vet Frequency
Annual
Health Risk
High
Vet Cost Level
Medium
Emergency Risk
High
Specialist Vet?
Yes
How Does It Compare?
Frequently Asked Questions
How much does a Rat cost per year?
Annual recurring costs from year 2 onwards are approximately $600 USD (US), with a first-year setup cost of $691 USD. Monthly average: $50 USD/mo.
What is the lifetime cost of a Rat?
Over a typical 3-year lifespan, expect to spend approximately $1,590 USD. This includes initial setup plus ongoing food, healthcare, supplies, and insurance. Real-world spending varies — many owners spend 20-30% less by doing grooming at home, skipping boarding, or choosing not to insure.
Is a Rat good for beginners?
Yes — Intelligent, social, affectionate. Moderate time commitment required.
What does a Rat eat?
Omnivore diet, fed Daily. lab blocks + fresh food
How big does a Rat get?
Toy size class, typical weight 400 g. Lifespan: 3 years.
Related Calculators & Resources
Photo: Chuck Homler d/b/a Focus On Wildlife — CC BY-SA 4.0 via Wikimedia Commons