About

We build free, accurate and private age calculators – for people, for testing and for pets – and AI tools that estimate age from a photo.

How we calculate

Date calculators use real calendar arithmetic, including leap years. Pet calculators follow published veterinary guidelines (AVMA dog age chart, AAHA/AAFP feline life stages) and are explained on each page. AI tools give estimates with a range, never a single “true” answer.

Privacy first

Date and pet calculators run in your browser. The “How old do I look?” tool analyzes your selfie on your own device. The pet photo tool sends your photo securely to an AI provider only to create the estimate; we do not store it.

Contact

Questions, corrections or ideas for a new calculator? Contact us.