# Dog Years to Human Years

> Skip the ×7 myth. Convert dog years to human years with a size-aware chart: first-year jump, second-year jump, then annual increments by small, medium, and large dogs.

- **Species:** Dog (*Canis familiaris*)
- **Conservation status:** Domesticated
- **Diet:** Omnivore
- **Habitat:** Domesticated, worldwide alongside people
- **Lifespan:** 10–13 years (varies by breed)
- **Top speed:** Up to 72 km/h (45 mph) in greyhounds
- **Canonical HTML:** https://globalanimalguide.org/animals/dog/dog-years-to-human-years/
- **Parent profile:** https://globalanimalguide.org/animals/dog/
- **Last reviewed:** 2026-07-16

## Quick answer

The dog is a domesticated mammal and the most popular pet on Earth, descended from the gray wolf and bred into more than 340 recognized breeds. Dogs are prized for their loyalty, trainability, and bond with people, and most live around 10 to 13 years. They range in size from tiny Chihuahuas to giant Great Danes.

## Who should skip this page

Skip this if you need the full biology — use the [Dog profile](https://globalanimalguide.org/animals/dog/) instead.

## Behavior and intelligence

Dogs are highly social, pack-oriented animals that bond strongly with humans and other dogs. They are unusually skilled at reading human gestures, expressions, and tone of voice, which makes them easy to train. The average dog can learn around 165 words and signals, and the brightest breeds can learn far more.

## Help protect the Dog

Millions of street dogs survive without food, shelter or veterinary care.

[Donate to street-dog clinics](https://worldanimalrescuenetwork.org/appeals/karachi-dogs/)

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Source: Global Animal Guide (https://globalanimalguide.org/animals/dog/dog-years-to-human-years/). Licensed CC BY-NC 4.0 — free for non-commercial reuse with attribution.