How Much Does a Guinea Pig Cost? 🐹
Updated 2026-04 · Based on exotic vet surveys, guinea pig rescue community data, and ASPCA small pet ownership studies
Guinea pigs are marketed as starter pets for children. Every guinea pig expert, vet, and rescue organization disagrees with that framing. They need a companion (budget for two), daily fresh vegetables with vitamin C (they cannot make their own), an enclosure roughly twice the size of what pet stores sell, and an exotic animal vet who charges more than a general practice. A properly cared-for pair costs $1,100–$1,630/year. Here is the full breakdown.
One-Time Upfront Costs
All costs shown for a pair of guinea pigs. Buying a single guinea pig is the wrong starting point — see the pair requirement section below.
| Item | Low | Mid | High | Notes |
|---|---|---|---|---|
| Guinea pig purchase (x2) | $50 | $80 | $150 | Shelter pair $40–$80; pet store pair $50–$100; breeder pair $80–$200 |
| Enclosure (C&C or large cage) | $100 | $175 | $300 | Min 10–14 sq ft for a pair; pet store cages are too small |
| Fleece bedding or substrate | $20 | $40 | $80 | Fleece liners are reusable; paper bedding $10–$25/month disposable |
| Food bowls + water bottle/bowl | $10 | $20 | $40 | Heavy ceramic bowls prevent tipping; water bottle + bowl backup |
| Hidey houses (x2 minimum) | $20 | $40 | $80 | One per pig; pigloos, wooden huts, fabric tunnels |
| Hay rack | $5 | $15 | $30 | Reduces waste; hay should always be available |
| First vet exam (exotic vet, x2) | $100 | $200 | $400 | Both guinea pigs should be seen; exotic vet premium applies |
| Initial hay + food supply | $30 | $50 | $80 | First month of hay, pellets, vitamin C source |
Annual Recurring Costs (Pair)
Year 2+ ongoing costs for two guinea pigs. Hay and fresh vegetables alone account for over half the annual budget.
| Category | Low | Mid | High | Notes |
|---|---|---|---|---|
| Timothy hay (for pair, unlimited) | $240 | $420 | $720 | $20–$60/month for two; buy in bulk to reduce cost per pound |
| Pellets (for pair) | $60 | $100 | $180 | Guinea pig-specific formula with added vitamin C; 1/8 cup per pig/day |
| Fresh vegetables (daily, vitamin C) | $200 | $350 | $600 | Bell peppers, romaine, cilantro, kale; non-negotiable for scurvy prevention |
| Bedding (paper-based, if not fleece) | $0 | $120 | $300 | Fleece liner reduces to $0 after initial purchase; paper bedding $10–$25/mo |
| Fleece liner washing | $0 | $30 | $60 | Added laundry costs; 2–3x weekly changes |
| Routine vet exam (exotic, x2) | $120 | $250 | $500 | Annual wellness visit per pig; exotic vet pricing applies |
| Emergency vet reserve | $0 | $150 | $600 | Dental malocclusion $200–$500; UTI $100–$300; respiratory $150–$350 |
| Toys + enrichment | $30 | $60 | $120 | Tunnels, wooden chews, foraging activities |
| Pet sitting (2 weeks/yr) | $0 | $150 | $400 | Guinea pig-knowledgeable sitters; fewer options than dogs/cats |
| Annual Total (pair) | $650 | $1,630 | $3,480 | Year 2+ recurring costs for two pigs |
The Pair Requirement: Why One Guinea Pig Is the Wrong Budget
Guinea pigs are not solitary animals who tolerate company. They are social animals who suffer without it. Research consistently shows that isolated guinea pigs exhibit elevated cortisol, reduced activity, and suppressed immune function compared to bonded pairs. They vocalize distress, develop stereotypic behaviors (repetitive meaningless movement), and typically live shorter lives than paired animals. Switzerland has legally prohibited keeping a single guinea pig since 2008, classifying solitary housing as an animal welfare violation.
Budget for two guinea pigs from the start. Two pigs in one large enclosure cost meaningfully less per pig than two pigs in separate setups, because the fixed costs (cage, hay rack, hides, enrichment items) are shared. A bonded same-sex pair from a shelter is the most cost-effective path.
The Vitamin C Problem: Why Guinea Pig Food Costs More Than It Should
Guinea pigs, like humans, cannot synthesise vitamin C. A deficiency causes scurvy — painful joint inflammation, rough coat, weight loss, and eventually death. This means daily fresh vegetables with high vitamin C content are not optional enrichment; they are medical nutrition. Bell peppers are the most efficient source (one small piece per pig provides a full day's requirement).
The problem with pellets: vitamin C degrades rapidly once a bag is opened. A bag purchased six weeks ago may have negligible remaining vitamin C. Water-additive vitamin C drops also degrade quickly in light and heat. Fresh vegetables are the only reliable daily source. Budget $175–$300/year per pig for produce — or $350–$600/year for a pair.
Lifetime Cost Estimate
Budget pair (4 years)
Rescue pigs, large DIY enclosure, fleece bedding, bulk hay purchasing. Minimal vet use beyond annual exams.
Well-cared-for pair (7 years)
Annual exotic vet exams for both, two or three dental or respiratory episodes across their lifespan, quality hay and fresh produce daily, proper C&C enclosure.
Health Costs: What Goes Wrong and What It Costs
| Condition | Frequency | Treatment Cost |
|---|---|---|
| Dental malocclusion | Common in older pigs (3+ yrs) | $200–$500 per tooth trim; ongoing |
| Respiratory infection (URI) | Occasional; common in young pigs | $100–$300 (exam + antibiotics) |
| Urinary tract infection/stones | More common in females | $150–$600 depending on severity |
| Ovarian cysts (females) | Over 70% of intact females by age 2–3 | $300–$800 (spay or hormone implant) |
| Vitamin C deficiency (scurvy) | Preventable with diet | $100–$300 if treatment required |
| Bumblefoot (sore hocks) | Common on hard/wire floors | $75–$200 + flooring change |
Ovarian cysts affect over 70% of intact female guinea pigs by age 2–3. A hormone implant ($150–$250) is less invasive than spay surgery ($300–$500) and lasts 1–2 years but needs repeat treatment. Most owners of female pigs face this decision within the first few years.
Guinea Pig vs. Other Pets: Annual Cost Comparison
| Pet | Annual Cost (Mid) | Lifespan | Lifetime Cost (Mid) |
|---|---|---|---|
| Guinea pig (pair) | $1,630/yr | 4–8 yrs | $6,500–$13,000 |
| Rabbit | $1,315/yr | 8–12 yrs | $12,000–$15,000 |
| Hamster | $300/yr | 2–3 yrs | $550–$950 |
| Indoor cat | $1,770/yr | 13–18 yrs | $23,000–$32,000 |
Shop Guinea Pig Supplies
Timothy hay, vitamin C-rich pellets, C&C cage panels, and fleece bedding — the recurring purchases that make up most of a guinea pig's annual budget.
Browse Guinea Pig Supplies on Chewy →Frequently Asked Questions
How much does a single guinea pig cost per year?
A single guinea pig costs $650–$1,240/year at mid-range — but you should not keep a single guinea pig. The correct comparison is a bonded pair at $1,100–$1,630/year. Isolated guinea pigs suffer documented welfare impacts (elevated cortisol, behavioral problems, shorter lifespans).
Are guinea pigs good pets for children?
Guinea pigs are gentle and rarely bite, making them safer for children than most small animals. But the care requirements exceed what a child can realistically provide independently: daily fresh vegetable preparation, heavy enclosure cleaning 2–3 times weekly, and the ability to recognize health warning signs early. Expect an adult to own the guinea pig with the child as a participant, not the reverse.
What should guinea pigs eat for vitamin C?
Fresh bell peppers are the most efficient vitamin C source — one small piece per pig per day provides a full daily requirement. Romaine lettuce, cilantro, and parsley work as supplements. Vitamin C pellets degrade quickly after opening and are unreliable as a sole source. Water-additive drops also degrade in light and heat. Fresh vegetables are the only source you can count on.
What size cage do guinea pigs need?
A pair of guinea pigs needs a minimum of 10–14 square feet of floor space — roughly a 2×5 or 2×6 foot C&C cage. Nearly every cage sold at major pet store chains is too small. A DIY C&C cage (coroplast base + cube grid panels) costs $80–$150 and provides appropriate space. Commercial alternatives at the right size start around $150–$250.