That’s How Old a Dog is in Human Years

When is a puppy grown up, when does a bitch count as a senior? Conversion to human years helps to get a feeling for the age of a dog.

One-year-old dogs are sexually mature, and ten-year-olds already have gray hair around their muzzles: the often-used rule of thumb “dog age + 7 = human age” cannot be correct. American researchers have now published a new formula for which you have to pull out the calculator with the logarithm key: 16 ln(dog age) + 31 = human age.

Not uncomplicated, but more precise. The formula is based on age-specific changes in the genome that are similar in humans and dogs. Not only does hair turn gray and skin wrinkle over the years, but DNA also shows signs of aging.

Development in dogs and humans

The newly created formula helps to make the stages of development in dogs and humans comparable: An eight-week-old puppy is roughly the same as a nine-month-old baby and gets straight teeth. And study leader Trey Ideker now has more understanding when his six-year-old dog gets out of breath while jogging: after all, as a human being, he would already be approaching 60.

Frequently Asked Question

How much is 1 human year in dog years?

Since the 1950s, the popular calculation of how old a dog is “in human years” has been that 1 dog year is the equivalent of 7 human years.

How old is a 12-year-old dog?

It is said that seven human years equals one year in the life of a dog. If you want to calculate the dog’s age, you only have to multiply the four-legged friend’s years of life by seven.

Why do you multiply dog years by 7?

According to genetic analysis, dogs do not age at a consistently faster rate than humans. The widespread rule of thumb for the age of dogs, according to which one year corresponds to about seven human years, is considered by US researchers to be quite wrong.

Which dogs get particularly old?

Small dog breeds that live particularly long on average are, for example, the Chinese Crested Dog, Dachshund, and Pomeranian – they live up to 18 years. Large breeds such as the Irish Wolfhound, Leonberger, or Dogue de Bordeaux have an average life expectancy of up to 8 years.

How old is the oldest dog?

The oldest dog in the world

The Australian Kelpie bitch Maggie took the place. She died in 2016 at the age of 30. She had pushed the Australian Cattle Dog “Bluey” to second place, which was 29 years and 5 months old, and died in 1939.

Is a 7-year-old dog already old?

On average, a dog is considered a senior from the age of seven to nine years. In this last phase of life, numerous special needs of senior dogs have to be considered. With appropriate support and care, your four-legged companion can stay fit and healthy for a long time.

Do old dogs get weird?

In old age, the ability to see and hear in particular decreases. Behavioral changes can also result when the senses deteriorate. This may be why your dog reacts more frightened and anxious in certain situations, or on the contrary: much more relaxed.

How is senility noticeable in dogs?

Loss of appetite with accompanying weight loss. Joint and bone problems due to bone loss or arthrosis: This often means that a dog no longer likes to move or has pain when getting up and down. Decrease or loss of hearing, vision, and smell.

How do animals feel when they are put to sleep?

If a dog is professionally euthanized, it will not experience any physical pain. He doesn’t feel his death coming. Animals are euthanized with an anesthetic.

What should I do if my dog dies at home?

You can also have your dog cremated at a pet crematorium or ask your vet to dispose of the carcass. If your dog dies at home, it is advisable to keep the body cool until the time of burial.

Mary Allen

Written by Mary Allen

Hello, I'm Mary! I've cared for many pet species including dogs, cats, guinea pigs, fish, and bearded dragons. I also have ten pets of my own currently. I've written many topics in this space including how-tos, informational articles, care guides, breed guides, and more.

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