This vet’s approved dog years to human years calculator is a tool that helps pet owners understand their canine’s age in human terms.
Dogs of different sizes age at different rates. Generally, smaller breeds tend to live longer than larger breeds.
- Small dogs: 15 human years for the first year, 9 for the second, then 4 human years for each additional year.
- Medium dogs: 15 human years for the first year, 9 for the second, then 5 human years for each additional year.
- Large dogs: 15 human years for the first year, 9 for the second, then 6 human years for each additional year.
- Giant dogs: 15 human years for the first year, 9 for the second, then 7-8 human years for each additional year.
Dog Years to Human Years Calculator
This is pup’s age chart with some sample calculations to help you find how old is your dog in human years for different sizes and ages.
| Dog’s Age | Small Dog | Medium Dog | Large Dog | Giant Dog |
|---|---|---|---|---|
| 1 year | 15 years | 15 years | 15 years | 15 years |
| 2 years | 24 years | 24 years | 24 years | 24 years |
| 5 years | 36 years | 39 years | 42 years | 45 years |
| 7 years | 44 years | 49 years | 54 years | 59 years |
| 10 years | 56 years | 64 years | 72 years | 80 years |
| 12 years | 64 years | 69 years | 77 years | 86 years |
| 15 years | 76 years | 83 years | 93 years | 103 years |
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Dog Age in Human Years Calculation Formula
The formula for calculating puppy age in human years has evolved over time. The American Veterinary Medical Association (AVMA) suggests a more nuanced approach:
- The first year of a medium-sized dog’s life is equivalent to about 15 human years.
- The second year of a dog’s life equals about 9 human years.
- After that, each human year equals approximately 5 years for a dog.
- Small (20 pounds or less)
- Medium (21-50 pounds)
- Large (51-90 pounds)
- Giant (over 90 pounds)
This formula still doesn’t account for size differences. A more accurate calculation might look like this:
These calculations provide a more accurate representation of a dog’s age in human terms, considering their size and faster aging process compared to humans.
Different Breeds of Dog
The diversity in dog breeds is astounding, with over 340 recognized breeds worldwide. Each breed falls into a size category that affects its aging process. Here are some examples:
- Small breeds: Chihuahua, Yorkshire Terrier, Pomeranian, Shih Tzu
- Medium breeds: Beagle, Cocker Spaniel, Border Collie, Bulldog
- Large breeds: Labrador Retriever, German Shepherd, Golden Retriever, Boxer
- Giant breeds: Great Dane, Saint Bernard, Mastiff, Newfoundland
How old is a 13 year old dog in human years?
- Small dog: 13 years ≈ 68 human years
- Medium dog: 13 years ≈ 74 human years
- Large dog: 13 years ≈ 82 human years
- Giant dog: 13 years ≈ 91 human years
Larger dogs age more rapidly in their later years, which is why they often have shorter lifespans compared to smaller breeds.
How old is 18 dog lifespan to human years?
An 18-year-old dog is considered quite elderly, regardless of size. Here’s an estimation:
- Small dog: 18 years ≈ 88 human years
- Medium dog: 18 years ≈ 99 human years
- Large dog: 18 years ≈ 115 human years
- Giant dog: 18 years ≈ 130 human years
It’s important to note that it’s rare for medium to giant breeds to reach this age, with many large and giant breeds having an average lifespan of 8-12 years.
Also See: – Rabbit Years to Human Years – Goat Years to Human Years
How old is 199 dog age in human years
A dog living to 199 years is not possible in reality. The oldest recorded dog lived to be 29 years and 5 months old. If we were to hypothetically calculate 199 dog years, it would far exceed any reasonable human age equivalent, surpassing several centuries in human years.
How old is 15 dog years to human years
For a 15-year-old dog, the human age equivalent would be:
- Small dog: 15 years ≈ 76 human years
- Medium dog: 15 years ≈ 83 human years
- Large dog: 15 years ≈ 93 human years
- Giant dog: 15 years ≈ 103 human years
At this age, all dogs are considered senior citizens, with giant breeds reaching this milestone much earlier in their lives.
