How do you calculate a dog's age in human years?

We use the 2020 Cell Systems formula: Human Age = 16 * ln(dog's real age) + 31, adjusted for size/breed.

Is 1 dog year really 7 human years?

No. This is a myth. Dogs age much faster in their first two years, and the rate varies significantly by size.

Scientific human years for dogs, cats & rabbits — real‑time, private.

Date of Birth

Size / Breed

Breed

human years old

Based on 2020 Cell Systems research Adult

Regular exercise and a balanced diet are key.

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🔒 100% Private?
All calculations happen locally. No data leaves your device.

🧬 Scientific Models?
Based on 2020 Cell Systems research for dogs, and veterinary guidelines for cats & rabbits.

🐾 Life Stages?
Puppy/Kitten (0-2 yrs), Adult (3-7 yrs), Senior (8+ yrs).

💡 Care Tips?
Tailored advice based on your pet's current life stage.

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