The Dog Age Calculator helps you convert your dog’s age into human years, adjusted for breed size. Simply fill in the fields above and click Calculate to get an instant result.
This calculator is part of Calculate Wiki’s Pet Calculators collection.
What You’ll Need
- Dog Age (years)
- Breed Size
Formula Used
Year 1 = Age × 15; Year 2 adds 9 more human years; each year after that adds 4–7 more human years depending on breed size.
Example Calculation
Using example inputs — Dog Age = 5 years; Breed Size = medium — the Dog Age Calculator returns:
| Value | Result |
|---|---|
| Human-equivalent age | 39 years |
39 human years. A 5-year-old medium dog is about 39 in human years.
Helpful Information
Results from the Dog Age Calculator are estimates based on standard formulas used in the pet calculators field. For projects with significant cost, health, or safety implications, consider verifying results with a qualified professional.