Small Dog Age Calculators by Breed: A-Z Directory

Last updated: August 16, 2026

Use this small dog age calculator by breed hub to find the dedicated calculator for your dog and estimate dog years to human years. The A-Z directory below is the primary navigation for small breed calculators, while the age chart provides a quick size-based reference.

Small dog aging is useful to view separately because small breeds generally age more slowly in later life than larger dogs and often have longer typical lifespans. For the broad calculator covering every size group, return to the Dog Age Calculator.

Featured Small Dog Age Calculators

Use these featured breed pages for quick access, or browse the complete A-Z directory immediately below.

Browse Small Dog Age Calculators by Breed (A-Z)

Choose your breed to open its dedicated dog age calculator. Each breed is assigned one primary size hub so the site's category path, breadcrumbs, and internal links remain consistent.

A

B

C

J

L

Lhasa Apso Age Calculator

M

N

P

R

Rat Terrier Age Calculator

S

T

W

West Highland White Terrier Age Calculator

Y

Small Dog Age Chart: Dog Years to Human Years

This chart uses the same size-based age model as the main Dog Age Calculator so users receive consistent reference values across the dog-age-calculator section.

Dog Age (Years)	Small Dog (Human Years)
1	15
2	24
3	29
4	34
5	38
6	42
7	47
8	53
9	57
10	60
12	70
14	78
16	87

The chart is a general small-size reference. For a more targeted result, open the breed-specific calculator from the directory above.

What Counts as a Small Dog on This Site?

This hub groups breeds that the site treats as small for dog-age navigation. Individual adult weights can overlap nearby size groups, so use your breed-specific page when available.

This taxonomy is designed for clear navigation, not as a veterinary or breed-standard definition. If your individual dog is unusually light or heavy for its breed, use the breed page first and compare the result with the main size-based calculator if needed.

How Small Dogs Age in Human Years

Dogs do not age at a constant rate. They mature quickly during puppyhood and early adulthood, then later-life aging differs more by size and breed. That is why a fixed 1 dog year = 7 human years formula is too simple.

Use the chart for a quick small-dog estimate, and use the dedicated breed calculator whenever your breed appears in the directory.

Small Dog Age Calculator FAQs

What is a small dog age calculator hub?

This page is an A-Z directory of small dog breed age calculators. Choose your breed to open its dedicated calculator and estimate dog years in human years.

How old is a small dog in human years?

A small dog's human-age estimate depends on its actual age and breed. Use the chart on this page for a general size-based reference, then use the breed-specific calculator when available.

Do small dogs age differently from large dogs?

Yes. Dogs mature rapidly early in life, but smaller dogs generally age more slowly later in life than large and giant dogs.

How do I find my small dog's calculator?

Browse the A-Z directory or use the featured links near the top of the page, then open the calculator for your dog's breed.

What if my breed falls near two size categories?

Use the breed-specific calculator if it is listed. This site assigns each breed one primary hub so the internal hierarchy remains clear even when real adult weights overlap.

Is one dog year equal to seven human years for small dogs?

No. The 1-to-7 rule is an oversimplification because dogs mature quickly in their first years and then age at different rates by size and breed.

Explore All Dog Age Calculators

Return to the main Dog Age Calculator to calculate by size and breed or browse the other dog-size hubs.