Dog Age Chart: How Old Is Your Dog In Human Years?

by | Mar 17, 2023 | Puppy Tips

It’s well-known that one year in the lifespan of a dog is equal to 7 human years. or do you think it is? If this is how you’ve calculated your dog’s age, it’s not the only way to go. But the reality is that this approach isn’t wholly reliable.

It is believed that”one dog year equals seven human years” was the “one dog year equals seven human years” method developed to show that dogs get older faster than human beings. Scientists and researchers have created a more precise method for calculating a dog’s age relative to human years.

How do I find out how old my dog is in terms of human years?

Suppose you’re interested in calculating your dog’s age in human years with greater precision. In that case, You can use the latest formula devised by researchers from the University of California San Diego School of Medicine.

The researchers looked at how the DNA of dogs and humans alters over time, focusing on patterns known as methyl groups in humans and Labrador Retrievers. Their research found that it is possible to calculate a dog’s age in humans by multiplying the natural logarithm of a pet’s age by 16 and then adding 31. The formula is as follows: (human_age = 16ln(dog_age) + 31). As you can observe, the formula is quite complicated. It could be helpful to input your dog’s age in an automated calculator that is programmed to use this formula, similar to this one.

To provide a more simple (and also more accurate) method of estimating your dog’s age, You can use this procedure to estimate the age of the small, medium, and large dogs less than 100 pounds.

  • One year into a puppy’s existence is equivalent to 15 human years.
  • The second year in a dog’s life equals nine human years.
  • Every additional year is about five or four human years.

Why is this more reliable than using the “one dog year equals seven human years” method?

Since it considers that different breeds of dogs get older similarly, the general rule is that smaller dogs are more likely to live longer than larger ones. In other words, while a seven-year-old Great Dane might be considered a “senior” dog, the same doesn’t apply to the seven-year-old Chihuahua. It’s therefore helpful to dissect a dog’s age chart by size, as shown below. It is common to group breeds into smaller dogs (under 20 pounds), moderate dogs (20 to 50lbs), and big breeds (50-100 lbs) or giant dogs (100+ lbs). ).

Take a look at the dog’s age-to-human age chart below to figure out your dog’s human years of age about their size:

Dog age calculation Chart



How do dog’s age?

As you will see in our chart of dogs ages and the category of giants, small, medium, and large dogs all age similarly until they reach around six. Larger dogs, however, are much more mature in comparison to those of smaller or medium-sized counterparts. Like a Dachshund, small dogs will be six years older than a giant breed such as the Airedale Terrier at seven years. What is the reason for this?

Scientists aren’t sure why smaller dogs live more slowly and last longer than larger breeds. As per the American Kennel Club, some researchers believe that this is because larger dogs are afflicted by age-related illnesses more rapidly. Also, larger dogs move from puppyhood to adulthood more quickly, making an abnormal growth of cells, the development of cancer, and other ailments more likely. Applying a “one dog year equals seven human years” calculation isn’t 100% accurate.

While the latest method we’ve described is more precise, it’s not easy to put a formula for how dogs ages. This change will not just depend on your dog’s size but also their breed and the individual genetics of each.

What are the common signs of the aging process for dogs?

It is helpful to study signs of behavior and physical characteristics to gauge your dog’s age. For instance, teeth can be an essential indicator of your dog’s age. As PetMD says, at seven months of age, all your pet’s permanent teeth are in the first year; after 1-2 years, they’ll appear duller and may show signs of yellowing. And by 5-10 years, they’ll begin to show wear and could show indications of dental disease.

Other indications of your dog’s age, in particular, as they approach the senior stage, are:

  • Graying hair
  • Poor eyesight, cloudy eyes
  • Trouble hearing
  • Stiff joints and muscles and arthritis
  • Lower activity levels
  • Changes in behavior, such as more significant anxiety
  • disorientation, accidents around the home, irritability, etc.

Naturally, you should consult your vet to get an accurate estimation of your dog’s age if you’re not sure. The vet will look at various variables like the shape of your dog’s body, teeth, hair or fur and eyes, and so on. to determine the most accurate estimate about their age.

Why is understanding my dog’s age so important?

Utilizing a dog’s age chart to determine your dog’s age to human age is an enjoyable and informative way to know more about the dog’s age! It’s essential for many different reasons as well. Knowing your dog’s age and the aging stage will allow you to provide the best care for your pet and ensure they live the most fulfilling possible quality of life.

Remember, If you own a giant dog, you’ll need to look for aging around five or six. In contrast, smaller owners might not notice any signs of aging until their pet is about seven or eight. When your dog is the age of seniority, you’ll need to check your dog’s behavior, level of activity, and eating habits. In general, an optimum diet, regular stimulation for the mind and physical exercise, and regular visits to the vet can aid in extending your dog’s life lifespan. In addition, you may think about purchasing pet health insurance to protect against any unexpected illnesses and accidents. In the end, your pet deserves the best possible care regardless of how old they are. That’s why Pumpkin can cover all breeds of dogs.

Written by admin

More From This Category