Pet answers,
without the fluff.
Free calculators built on peer-reviewed veterinary research. No sign-up, no tracking, no guesswork, just answers you can use right away.
Live calculators published and ready to use.
Dog age model sourced from the UCSD epigenetic aging study.
Accounts, paywalls, or forms standing between the user and the answer.
Dog Calculators
Tools for dog owners
Each tool is designed like a clear product surface: one job, one answer, and enough context to trust the result.
Convert dog years to human years using the 2020 epigenetic aging model — not the outdated "multiply by 7" rule.
Estimate monthly pet insurance cost using age, breed, state, deductible, reimbursement, and annual limit choices.
Safe medication dosages by weight for common OTC and vet-prescribed drugs.
Daily food portion recommendations based on weight, age, and activity level.
Cat Calculators
Tools for cat owners
The same system will expand into cat health, aging, and care planning, with each calculator published only when the underlying assumptions are clear enough to explain.
Convert cat years to human years, accounting for the rapid aging of the first two years.
Estimate pet insurance cost for your cat based on breed, age, and coverage needs.
Why it feels different
Designed more like a utility product than a content farm.
bowwowpaw is being shaped around the Uber Base idea of direct, high-contrast, low-noise interfaces. That means less decoration, clearer hierarchy, and fewer moments where the user has to guess what to do next.
Important numbers, titles, and actions get room and contrast before anything secondary does.
Cards rely on border and spacing first, not heavy shadow or ornamental chrome.
The homepage can keep absorbing new calculators without losing structure as the library grows.
Why use a pet calculator?
Every dog and cat ages differently depending on their breed, size, and genetics. The popular belief that one dog year equals seven human years has been debunked by modern veterinary science. A Great Dane ages far faster than a Chihuahua — and understanding where your pet is in their life stage directly affects the care decisions you make every day.
bowwowpaw brings together the most useful pet health calculators in one place, using peer-reviewed veterinary research as our foundation. Our dog age calculator uses the 2020 UCSD/NIH epigenetic aging study combined with size-based adjustments, giving you accurate, science-based answers in seconds.
Dog Age Calculator
Our dog age calculator uses the logarithmic formula published by Wang et al. (2020) in Cell Systems, the most accurate model available. It accounts for your dog's size — because small dogs live longer and age slower than giant breeds. Enter your dog's age and size, and get their equivalent human age and life stage instantly.
About bowwowpaw
bowwowpaw is a free resource for pet owners who want accurate, easy-to-use tools. All calculations run directly in your browser — no accounts, no tracking, no fees. We're constantly adding new calculators, so bookmark this page and check back soon.
- Formulas sourced from peer-reviewed veterinary research (Wang et al. 2020, Kraus et al. 2013, AAHA 2019 guidelines)
- Optimized for mobile — works great on any device
- Free, forever — supported by optional display ads