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How Long a Dog Lives and How to Count its Age

How long a dog lives, and how to count its age

How to count dog age. Many people wonder how long a dog lives, but unfortunately, there is no clear-cut answer to this question that applies to all our four-legged friends. It all depends on the breed, the lifestyle and the diseases our beloved furry might suffer.

However, it is possible to make a rough estimate and know the average lifespan of a dog according to the dog breed to which it belongs by analysing the relevant statistics. Let us, therefore, find out how long dogs live and how to count the age of dogs by comparing their age with ours.

How long does a dog live?

The life expectancy of a dog is calculated from the deaths recorded by veterinary doctors. This statistical measurement is not carried out on the entire dog population but on actual samples, i.e. on a small number of specimens, discriminated by sex, breed and size.

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Statistical analyses show that the average lifespan of dogs usually ranges from 10 to 13 years. One must then discriminate according to the size and breed of the dog. It is well known that small dogs live longer than large ones: for example, the longest-lived are Chihuahuas, which can reach up to 20 years of age, in contrast to a Great Dane, which has a life expectancy of only eight years.

How long a dog lives, and how to count its age
Distribution of age at death from all dogs in the survey. The age distribution at the end (in years) from all dogs in the survey (n = 5663).
How long a dog lives, and how to count its age.
Box and Whisker plot of age at death across breeds.

Box and Whisker plot of age at death across breeds. Notched Box and Whisker action of age at the end (months) across breeds for the 25 species with ≥50 deaths reported. ‘Notches’ in the boxes indicate the approximate 95% confidence interval of the median. For example, the red dashed line indicates the median age at death of all dogs in the survey (n = 5663) of 124 months, and the thickness of this line approximates the 95% confidence interval (122.57 to 125.43 months). Source: Longevity and mortality in Kennel Club registered dog breeds in the UK.

How long lives a dog and how do count the age of dogs

To calculate the age of dogs, you should know that there are several lines of thought based on comparing canine biological age with human biological age. The first theory associates dogs’ years with ours in the following way.

Canine months Human years
18 months20 years
20 months21 years
22 months22 years
Two years24 years
Three years28 years
Four years32 years
20 years100 years

On the other hand, the second theory assumes that each canine year corresponds to about 6 or 7 human ones.

Canine months Human years
One year6/7 years
Two years12/14 years
Three years18/21 years
Four years24/28 years
13 years78/91 years
14 years84/98 years

In our view, it is not very important to worry about how long a dog lives; it is virtually impossible to know! The only thing that matters is to enjoy every minute in the company of your four-legged friend, making every second of his life simply unforgettable for him and you.

Thank you for reading the article to the end. Your reading contribution was significant to us.

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The "Frenchie Breed" website is a blog aimed at dog owners. We regularly publish articles about our four-legged furry friends. Among the contents of our blog, you will find ample space on the latest news in the sector, with information and in-depth analysis dedicated to the world of dogs in all its forms, the latest trends and news of the moment, curious facts, events devoted to dogs, product reviews, as well as an intense activity of information regarding the health and well-being of pets.

Please Note: The articles in the 'Frenchie Breed Blog' are for information purposes only; nothing published can or should be construed as an attempt to offer professional advice or consultation with a physician, veterinary surgeon or another health professional.

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Written by Frenchie Breed

The "Frenchie Breed" website is a blog aimed at dog owners. We regularly publish articles about our four-legged furry friends. Among the contents of our blog, you will find ample space on the latest news in the sector, with information and in-depth analysis dedicated to the world of dogs in all its forms, the latest trends and news of the moment, curious facts, events devoted to dogs, product reviews, as well as an intense activity of information regarding the health and well-being of pets.

Please Note: The articles in the 'Frenchie Breed Blog' are for information purposes only; nothing published can or should be construed as an attempt to offer professional advice or consultation with a physician, veterinary surgeon or another health professional.

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