Rabbit Calculators
Rabbit-specific calculators for age, pregnancy (31-day), cage size and feeding. Breed-adjusted lifespans.
- Rabbit Pregnancy CalculatorCalculate your doe's kindling date (28–34 day gestation). Nest-box prep countdown and kit milestone tracker.pregnancyOpen
- Rabbit Age CalculatorConvert rabbit age to human years with breed-size-adjusted lifespans for dwarf, standard and giant rabbits.ageOpen
- Rabbit Hutch Size CalculatorCalculate the minimum, recommended and ideal hutch size for 1–3 rabbits. RWA-standard dimensions with breed-size adjustment.housingOpen
- Rabbit Feeding CalculatorCalculate daily hay (unlimited), pellet portions and fresh greens for your rabbit based on weight and life stage.nutritionOpen
- Rabbit Water IntakeCalculate daily water for rabbits: 50-150 mL per kg body weight.healthOpen
About rabbits in the United States
Rabbits are the 3rd most common US pet after cats and dogs — about 1.5 million pet rabbits. House rabbit keeping has surged in the last decade, with most rabbits now housed indoors rather than in outdoor hutches. Our rabbit calculators follow House Rabbit Society and Rabbit Welfare Association UK standards.
How rabbit care differs from guinea pig care
Rabbits need unlimited hay, pellet restriction (not free-feed), and 4+ hours daily exercise. Their gut stasis can kill within 24 hours if they stop eating. Unlike cats or dogs, rabbits should not be fed fruit as a regular treat (sugar disrupts gut flora).
Rabbit calculator FAQ
Can rabbits live alone?
They strongly prefer companions. Pairs (neutered, opposite-sex usually) bond best. Single rabbits require more human interaction but can be happy with daily out-of-hutch time.
How big should a rabbit hutch be?
RWA UK minimum: 6 ft × 2 ft × 2 ft (12 sq ft) for any rabbit — MUCH larger than most pet-store hutches. See our Rabbit Hutch Size Calculator.
How accurate are these calculator results?
Our calculators implement the exact formulas used in veterinary textbooks, AAFCO/NRC nutrition standards, AAHA/AAFP life-stage guidelines, and peer-reviewed research. Results are accurate within the precision of the input data. For medical decisions (toxicity, drug dosing, diabetic insulin), always confirm with your veterinarian — calculators are educational tools, not clinical devices.