# FurStage

> Free, connected pet tools: find a pet name, calculate your dog or cat's age in human years, and understand their life stage. Age math is based on AVMA size-based tables and the 2020 UC San Diego (Cell Systems) epigenetic formula; life stages follow AAFP/AAHA guidelines.

## Calculators
- [Dog Age Calculator](https://furstage.com/dog-age-calculator): Convert a dog's age to human years by size, using AVMA and UCSD methods.
- [Cat Age Calculator](https://furstage.com/cat-age-calculator): Convert a cat's age to human years using AAFP life stages.
- [Pet Age Calculator](https://furstage.com/pet-age-calculator): One calculator for both dogs and cats.
- [Feeding Calculator](https://furstage.com/tools/feeding-calculator): Estimate daily food portions by weight and life stage.
- [Birthday Calculator](https://furstage.com/tools/birthday-calculator): Find a pet's birthday and current age from an adoption or birth date.

## Year-conversion charts
- [Dog Years to Human Years](https://furstage.com/dog-years-to-human-years): Full size-based dog-to-human age chart plus the science behind it.
- [Cat Years to Human Years](https://furstage.com/cat-years-to-human-years): Full cat-to-human age chart with the per-year conversion.

## Name generators
- [Dog Name Generator](https://furstage.com/dog-name-generator): Filterable dog names by gender, style, breed and color.
- [Cat Name Generator](https://furstage.com/cat-name-generator): Filterable cat names by gender, style and color.
- [Pet Name Generator](https://furstage.com/pet-name-generator): Names for any pet, with favorites you can save.

## Life-stage guides
- [Dog Life Stages](https://furstage.com/life-stage/dog): Puppy to senior — ages, what to expect, and care for each stage.
- [Cat Life Stages](https://furstage.com/life-stage/cat): Kitten to senior — ages, what to expect, and care for each stage.

## Guides (blog)
- [How to Calculate Dog Years](https://furstage.com/blog/how-to-calculate-dog-years): Why the ×7 rule is a myth and the modern size-based + UCSD 2020 methods.
- [How to Calculate Cat Years](https://furstage.com/blog/how-to-calculate-cat-years): The AAFP life-stage system and converting cat years to human years.
- [When Is My Dog a Senior?](https://furstage.com/blog/when-is-my-dog-a-senior): Size-based senior thresholds, from small breeds to giant breeds.
- [When Is My Cat a Senior?](https://furstage.com/blog/when-is-my-cat-a-senior): The mature/senior/geriatric thresholds and what each means.
- [Puppy Life Stages Guide](https://furstage.com/blog/puppy-life-stages-guide): The five puppy stages and the 12-week socialization window.
- [Kitten Life Stages Guide](https://furstage.com/blog/kitten-life-stages-guide): Kitten development and the 7-week socialization window.
- [Trending Dog Names 2025](https://furstage.com/blog/trending-dog-names-2025): Top and rising dog names for 2025.
- [Trending Cat Names 2025](https://furstage.com/blog/trending-cat-names-2025): Top and rising cat names for 2025.
- [Food-Inspired Pet Names](https://furstage.com/blog/food-inspired-pet-names): The food-name trend, by category.
- [How to Pick a Dog Name](https://furstage.com/blog/how-to-pick-a-dog-name): Six rules for a name dogs learn fast.
- [Senior Dog Care Guide](https://furstage.com/blog/senior-dog-care-guide): What changes — vet visits, diet, exercise, enrichment — in a dog's senior years.

## Notes
- Spanish (/es) and German (/de) versions of the tools are available; English URLs above are canonical.
- Tools are free, require no signup, and read their state from the URL (shareable links).
- Contact: hello@furstage.com