Rabbit Hay Requirement Calculator
Determine exactly how much hay your rabbit needs daily based on weight, age, and breed. Proper hay intake prevents GI stasis and dental disease.
🐇 Daily Hay Requirement Calculator
Enter rabbit details to calculate optimal hay portion and type
Rabbit Hay Requirement: Complete Guide to Daily Hay Intake
Hay is the most critical component of a rabbit’s diet, making up 80-90% of daily intake. Our Rabbit Hay Requirement Calculator helps you determine exactly how much hay your bunny needs based on weight, age, and breed. For additional pet care tools, visit Pet Calculator Hub and Smart Life Calculators.
How Much Hay Does a Rabbit Need Daily?
- General Rule: A pile of hay roughly the size of the rabbit’s body every day.
- By Weight: Approximately 1-2 times their body volume daily.
- Small breed (1.5 kg): About 1-2 cups loosely packed hay per day, but always offer unlimited.
- Medium breed (2.5 kg): Body-size pile — roughly 3-4 cups loose hay.
- Large breed (5 kg): Large pile — 6-8 cups or more.
Our calculator above uses weight-based formulas to show the recommended daily hay portion — but remember, unlimited hay should always be available. The number shown is the minimum daily intake.
Types of Hay for Rabbits by Life Stage
- Alfalfa Hay: For babies (0-6 months) — high calcium and protein. NOT for adult rabbits (causes bladder sludge).
- Timothy Hay: Best for adults and seniors — high fiber, low calcium, ideal for dental health.
- Orchard Grass: Similar to Timothy, softer texture — good for picky eaters and seniors.
- Oat Hay: Contains seed heads — great as variety but should not be primary hay.
- Meadow Hay: Mixed grasses — ensure it’s not too rich.
Rabbit Age to Human Years Conversion
First year = 20 human years, second = 30, then +5 per year (medium breeds). A 3-year-old rabbit ≈ 35 human years. Senior rabbits (6+ rabbit years) need softer hay and more frequent dental checks.
Signs Your Rabbit Is Eating Enough Hay
- Round, golden, dry fecal pellets (size of a pea for medium rabbits)
- Consistent production of 200-300 pellets per day
- No uneaten cecotropes (night feces)
- Healthy teeth with no drooling or weight loss
Frequently Asked Questions
Unlimited — at least a pile the size of their body daily. Use our calculator above for exact weight-based recommendations.
No! Pellets alone cause dental disease, obesity, and GI stasis. Hay must be 80-90% of diet.
Timothy hay, Orchard grass, or Oat hay. Avoid alfalfa for adults (too high calcium).
Try different hay brands, add hay to litter box, reduce pellets, or check for dental pain with a vet.
Store in a cool, dry, ventilated area. Avoid plastic bags — use cardboard boxes or breathable hay bags.
For authoritative rabbit nutrition guidelines, visit House Rabbit Society and AVMA Rabbit Care.