Dog Age Calculator
Convert your dog's age into human years using a modern size-aware formula (small / medium / large breeds).
Modern formula
Year 1 โ 15 human years, year 2 adds โ 9, then each additional year adds 4โ6 depending on size. Larger breeds age faster than smaller breeds.
Frequently Asked Questions
Is the Dog Age Calculator free to use?
Yes, the Dog Age Calculator is 100% free to use. There are no subscriptions, no sign-ups, and no hidden fees.
Is my data safe when using the Dog Age Calculator?
Absolutely. All calculations performed by the Dog Age Calculator happen locally in your web browser. We do not store, track, or transmit your inputs or results to any server.
How accurate is the Dog Age Calculator?
Our Dog Age Calculator uses industry-standard formulas and methodology. You can view the exact formula and calculation logic used in the methodology section above to verify the math yourself.
Can I use the Dog Age Calculator on my mobile phone?
Yes! The Dog Age Calculator is fully responsive and works seamlessly on all devices including smartphones, tablets, and desktop computers.