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FurCalc

Rabbit Feeding Calculator — Hay, Pellets & Greens by Weight

Calculate daily feeding portions for your rabbit. 80 % hay, 10 % fresh greens, 5 % pellets, 5 % treats is the House Rabbit Society standard.

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Daily portions
  • Hay: Unlimited (timothy or orchard — 80 % of diet)
  • Pellets: 0.25 cups
  • Fresh greens: 1.5 cups
  • Treats: ≤ 1 tbsp (fruit sparingly)

Weekly hay

0.7 lb (~17 kg/year)

Safe greens: romaine, cilantro, parsley, basil, spring mix. Avoid: iceberg lettuce, onions, garlic, rhubarb leaves, potato greens.

Frequently Asked Questions

How much should I feed my rabbit?

Rabbit diet: 80 % hay (unlimited), 10 % fresh vegetables (1–2 cups per 5 lb body weight), 5 % pellets (1/4 cup per 5 lb), 5 % treats maximum.

How much hay does a rabbit eat per day?

Rabbits should eat a pile of hay roughly equal to their body size daily. A 5 lb rabbit eats about 0.7 lb (320 g) of hay per day = ~5 lb per week.

What vegetables are safe for rabbits?

Safe daily: romaine, cilantro, parsley, basil, arugula, bok choy, carrot tops, spring mix. Occasional: bell pepper, cucumber, zucchini. Limit carrots (high sugar) to 1 tbsp/day.

What foods are toxic to rabbits?

Never feed: iceberg lettuce (worthless), onions, garlic, potato/tomato/rhubarb leaves, avocado, chocolate, yogurt drops, cereal, bread, seeds. Fruit should be a rare treat (high sugar causes GI stasis).

Do rabbits need pellets?

Adult rabbits do best on a pellet-limited diet (1/4 cup per 5 lb). Pellets are high in calories; over-feeding pellets is the #1 cause of rabbit obesity and dental disease. Seniors and dwarf breeds may need less.

Sources & References

  1. [1]
    Rabbit Feeding Guide — House Rabbit Society
  2. [2]
  3. [3]

Common mistakes to avoid

  • Pellet-heavy diet — pellets should be <10% of adult diet. Hay is 80%+.
  • Iceberg lettuce and carrots as staples — iceberg is mostly water, carrots are high-sugar treats only.
  • Sudden diet changes — rabbit GI is extremely delicate. Transition over 7-14 days.

When to call the vet immediately

  • No fecal pellets for 6+ hours — GI stasis, emergency.
  • Mushy droppings — diet too rich (too many pellets/fresh greens).

Pro tips

  • Unlimited timothy hay (grass hay) — never run out. Alfalfa only for juveniles <6 months.
  • Fresh greens: 1 cup per 2 lb body weight daily, mixed variety (parsley, cilantro, romaine, basil).
  • Fresh water in a heavy bowl beats a bottle for most rabbits — they drink more.