Pet calculators
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Pet ownership planning — not veterinary advice: dog and cat age in human years using AAHA-style charts, monthly food and walking costs, annual budget totals, boarding estimates, litter box counts, aquarium volume, and calendar age from a pet’s birthday. No medication or clinical nutrition dosing — ask your vet for health decisions.
9 tools in this section
Dog Age
Convert dog years to human years with AAHA size-class charts for small, medium, large, and giant breeds — not the outdated multiply-by-7 rule. Estimate only.
Cat Age
Convert cat years to human years with a common feline age chart used by veterinarians. Planning estimate only — not veterinary advice or a health assessment.
Pet Food Cost
Estimate monthly or annual dog or cat food cost from daily cups or cans and price per unit. Budget planning only — not veterinary feeding or nutrition advice.
Annual Pet Budget
Sum annual pet ownership costs across food, vet care, insurance, supplies, and other line items. Household budget snapshot — not financial or veterinary advice.
Pet Boarding Cost
Estimate pet boarding cost from nightly kennel rate, number of nights, and flat fees. Budget before travel — rates vary by region, size, and facility amenities.
Litter Boxes Needed
How many litter boxes do you need? Common vet guidance is one box per cat plus one extra. Planning estimate only — not veterinary advice on litter-box behavior.
Aquarium Volume
Calculate aquarium volume in liters and US gallons for rectangular or cylindrical tanks in centimeters. Gross tank size — not fill volume after substrate.
Dog Walking Cost
Estimate dog walking cost from walks per week and rate per walk. Weekly, monthly, and annual totals. Budget planning only — include tips in your per-walk rate.
Pet Age From Birthday
Calculate your pet's calendar age in years, months, and days from a birth date. Different from dog-year charts — generic date math, not veterinary advice.