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Animal Years to Human Years Calculator (Dog, Cat, Rabbit, Horse, and More)

Do you know 15 minutes of petting your favorite animal can release natural hormones? It includes prolactin, oxytocin, serotonin; and also lowers your cortisol.

As a pet owner, you might be curious about the animal years to human years calculator. If you think that one year of a dog is equal to seven human years, then you are not alone, dear. But, the truth is this isn’t an accurate method of calculating animal years to human years.

This article summarizes the animal years to human years calculator and methods. Here you will learn to calculate exact animal years to human years. 

Animal Years to Human Years

Animal Years To Human Years
Animal Years to Human Years

The bond between pet owners and pets is just like the relationship of one human to the other.

Actually, animals mature faster than any humans; the initial years of your pet’s life compare to more human years than the subsequent years. So, for analyzing the maturity rate and checking the requirements of their animals, people convert animal years to human years.

If you’re seeking to calculate animal age in human years more specifically, then you can use a new formula. This formula is created by researchers of the University of California San Diego School of Medicine. It applies, especially to dogs.

Calculate a dog’s age to human years by multiplying the natural logarithm of the dog’s age by 16 and adding 31.

The formula looks like: (human_age = 16ln(dog_age) + 31).

Notes: This formula is only applicable for some animals that mate after one or two years. For the other animals such as elephants, we only calculate their human years by normal formula.

One year in animal age is equal to (79 / animal average lifespan) human years.

For example, elephant’s average lifespan is 60 years, so one year of elephant age equal to 80/60 or 1.31 years.

Why 79? Well, human life expectancy is 79 years in 2021. Why 79 / Average lifespan? Well, if you

Well, we have created the animal years to human years calculator table below to save you time.

The tool is originally generated by uniquepetswiki.com. Please give us a reference when using our tool. Thank you friends!

AnimalsAverage lifespan (years)One year in each animal is equal to how many years in humans.
Cow 223.6
Chicken 108
Animal years to human years calculator

Lazy on calculating yourself? Use our tool to calculate your animal years to human years instead.

Animal Years To Human Years Calculator

The tool is originally generated by uniquepetswiki.com. Please give us a reference when using our tool. Thank you friends!

16 Years old

Eg: Your elephant is 12 years 6 months old. The first box you will enter 12, the second box you will enter 6. Convert to human years will be 16 Years

The tool is applicable to get:

  • Dog years to human years
  • Cat years to human years
  • Cow years to human years
  • Elephant years to human years
  • Goat years to human years
  • Horse years to human years
  • Monkey years to human years
  • Chicken years to human years
  • Rabbit years to human years
  • Pig years to human years

What animals do you want us to add to the tool? Give us a message via [email protected].

Eric will add your animal within 3 working days.

Why Change Animals Age To Humans Age? 

Pets are the most loyal and lovable human companions. As pet animals grow more emotionally tangled with human life, the point of their life expectancy has been considered more.

Changing animal age to human age will make you understand more about their body, maturity level, requirements, and brain size.

Animal Average Life Expectancy

Dog’s Life Expectancy 

Dog's Life Expectancy
Dog’s Life Expectancy 

It’s a truth that one day you have to say the hardest goodbye to your dog. Now, hopping to the life expectancy of dogs, their ages are not the same, and their average life expectancy is approx 13 years. Generally, small dogs live longer than large dog breeds.

Let’s take the example of Labrador Retrievers and French Bulldogs. The life expectancy of a French Bulldog is 12 years as a pet. And Labrador Retriever’s life expectancy as a pet is 10 years to 12 years.

Keeping your dog healthy and living longer, it is important to give them proper nutrients and exercise to reduce the risk of spine, hip, or back problems.

The wild dogs don’t eat every day, and many times they are forced to live without food. Sometimes wild dogs are killed in an accident or caught by predators. Their life expectancy is 5 years to 7 years, and they can live up to 12 years.

One year of a dog's life is equal to 6.07 years for a human.
One year of a dog’s life is equal to 6.07 years for a human.

One year of a dog’s life is equal to 6.07 years for a human.

Cat’s Life Expectancy 

life expectancy of cats is 13 years to 17 years
life expectancy of cats is 13 years to 17 years

Cats can live a longer life by provided them with advanced medical care and better nutrition. The average life expectancy of cats is 13 years to 17 years.

Maine Coon and Persian cats are the two most famous cat breeds. The average lifespan of a Maine Coon is 14 years. While the Persian cat’s lifespan is 12 years to 17 years.

For increasing the lifespan of a cat, you can enlist a suitable food and diet chart. It will help you to keep your cat healthy and free from diseases. 

Mainly wild cats don’t live longer, and their average life span is 2 years to 5 years. As we know, there are many dangers that a Wild cat faces regularly. Traffic, predators, hunger, health problems, and many more reasons decrease the lifespan of a cat.

Using our formula, one year of a cat’s life is equal to 4.92 years in humans.

Cow’s Life Expectancy

We have been using cows (dairy animals) for milk since ancient times. As you know, each cow species can produce milk for their child, but only a few can be used for milk production in dairies.

The life expectancy of a cow depends on extrinsic and intrinsic factors. For a cow, the average life expectancy is 26 years.

Holstein and Jersey is the most commonly found cow breed. The average productive life of a Holstein is approx 6 years, while some cows may live longer. And Jersey cows usually live for approx 25 years or even more.

The wild cow has a lesser life expectancy than a domesticated cow. A wild cow can live 15 years to 20 years. Cattle are commonly raised as livestock for meat (beef or veal, see beef cattle) and for hides that are used to make leather. Survival analysis has shown that cows leave the herd early in lactation mainly due to metabolic health reasons.

One year of a cow's life is equal to 3.6 years in humans.
One year of a cow’s life is equal to 3.6 years in humans.

One year of a cow’s life is equal to 3.6 years in humans.

Elephant’s Life Expectancy

One year of an elephant's life is equal to 1.31 years for a human.
One year of an elephant’s life is equal to 1.31 years for a human.

Elephants are prominent  and beloved animals in zoos. You can see Elephants in safaris and zoos. But do you know these animals are in danger of being lost?

Lead author Georgia Mason, a zoologist at the University of Guelph in Canada, said stress and Obesity are the main factors for the giant land mammal’s early demise in captivity.

The Indian elephant and Sumatran are the most popular elephant breeds. The Indian elephant’s average life expectancy is 80 years in captivity. While Sumatran’s female captive elephants can survive until 75 years, and males can live for 60 years.

Researchers have said that elephants in zoos and the wild have different life expectancies. The maximum longevity of the wild elephants is around 60 years. 

The lifespan of wild elephants depends on the threats they face every day. Wild Elephants have a higher risk of losing their lives because of human conflicts or poaching, and Elephants in the zoo have the danger of not being self-sustaining.

One year of an elephant’s life is equal to 1.31 years for a human.

Goat’s Life Expectancy

Goats were the first animals domesticated by man in 10,000 B.C. As you know, goats can be kept as pets as long as basic requirements are met. Pet goats love attention and pets from  their owners. Goats are social animals and will also eat out of one’s hand.

Alpine and La Mancha goats are the two most popular breeds. Alpine goats are known as heavy milkers. Their milk can be used to make cheese, butter, ice cream, soap, and other dairy products. Alpine goats can survive 8 years to 13 years.

La Mancha is the most popular dairy breed in the world. Their lifespan is 7 years to 10 years.

Goats usually need a good amount of space to run. And also a strong perimeter fence to keep from destroying the barricade and running away.

If we talk about wild goats, their lifespan is 9 years to 12 years. They have more risk of life because sometimes wild goats are killed in an accident or caught by predators.

One year of a goat’s life is equal to 4.4 years for a human.

Horse’s Life Expectancy

One year of a horse's life is equal to 15 years for a human.
One year of a horse’s life is equal to 15 years for a human.

Presently, there are 300+ breeds of horses in the world. They come in different colors, sizes, and shapes. Generally, horses are kept as working and pet animals. These animals are loved by their owners, who use them for travel, companionship, labor, and recreation.

American Quarter Horse and Arabian are two popular horse breeds. Arabian horses can live 25 years to 30 years. While American Quarter horse breeds can live 25 years to 35 years, some even longer.

The wild horses may suffer a lack of nutrition and care, so they live a little less than domesticated horses. They can live 25 years, and also, life expectancy depends on genetics and workload.

The level of physical activity and nutrition can increase the life expectancy of your horses. The fact is, larger horses have a shorter life expectancy, and smaller horses have a longer lifespan.

One year of a horse’s life is equal to 2.63 years for a human.

Chicken’s Life Expectancy

Production chickens are usually raised for meat and eggs. The average production chicken breed can live for 3 years to 5 years. A variety of factors affect the life expectancy of chickens, like, their genetics, diet, disease, and access to veterinary care.

Orpington chicken and Plymouth Rock chicken are two popular breeds. The lifespan of Orpington chicken is 8 years. The Plymouth Rock chicken can live up to 8 years or more.

On average wild chickens tend to live somewhere between 5 years to 10 years. The Hens live less because of strain egg production on their body.

The wild chicken can be caught by hungry predators (like foxes and hawks). But pet chicken can be safe from predators by proper arrangements. And the second common cause for premature death is Marek’s Disease.

One year of a chicken’s life is equal to 8 years for a human.

Monkey’s Life Expectancy

Monkey is a common name that may refer to certain groups or species of simian mammals of infraorder Simiiformes. Many monkey species are tree-dwelling (arboreal), although there are species that live primarily on the ground, such as baboons.

Capuchin Monkey and Marmoset Monkey are the two most popular breeds. The capuchin monkeys are New World monkeys of the subfamily Cebinae, and their lifespan is 15 years to 25 years as a pet. Marmoset Monkey can live 5 years to 7 years in captivity.

The lifespan of a lemur, on the other hand, is about 15 years, and a monkey’s 25 years to 30 years in the wild.

One year of a monkey’s life is equal to 3.9 years for a human.

Rabbit’s Life Expectancy

Rabbits are a lovely pet that needs appropriate exercise, housing, a specific diet and socialization for the longest lifespan. Many breeds of rabbits have long hair and may need daily grooming.

Dwarf rabbits and Himalayan Rabbits are two popular rabbit breeds with different temperaments. The lifespan of Dwarf rabbits is 9 years to 10 years. And Himalayan rabbits can live up to 8 years.

The wild Rabbits live for 1 year to 2 years, depending on their breed and environment. Wild rabbits have a much shorter lifespan as they have many risks. They can be killed in an accident or eaten by other animals.

Rabbits that are kept outdoors have lesser life expectancy than those kept indoors. Outdoor rabbits daily face harsher living conditions. The rabbits have heavy furs; so, summer can be a killer condition for them. Also, extremely cold weather can give rabbit hypothermia.

One year of a rabbit’s life is equal to 8.8 years for a human.

Pig’s Life Expectancy

Domestic pigs are intelligent animals just like dogs.

According to David DiSalvo’s writing in Forbes, they are “widely considered the smartest domesticated animal in the world. Pigs can move a cursor on a video screen with their snouts and understand what is happening on screen, and even learn to distinguish between the scribbles they knew from those they saw for the first time.” Source: Wikipedia.

Kunekune and Mini pig are the two most popular breeds. The Mini pig can live for 15 years to 18 years. And Kunekune can live 8 years to 10 years.

You might also like:

Small guinea pig breeds
Small guinea pig breeds

Basically, the life expectancy of pigs depends on their care, proper medical checkup, and nutrition. Domesticated pigs have a longer lifespan than wild pigs.

The wild pigs have a life expectancy of 4 years to 8 years. Incorrect feeding can create health problems for wild pigs like nutrition deficiencies and weight issues.

One year of a pig’s life is equal to 10 years for a human.

What Affects Pet Animals Lifespan?

It is painful to get attached to a pet and lose it in a short time. When choosing a pet animal, it’s good to consider the lifespan. Most animal’s lives rely on particular environmental requirements.

Apart from this, environment, care, diet, and species are major factors in an animal’s lifespan.


Animals are significantly smaller than any humans. They can be affected by a smaller amount of toxins and pollutants. The pet animals absorb and ingest toxins such as pesticides, insecticides, chemical lawn fertilizers, de-icing agents, and different chemicals.

The harsh weather like heavy extreme snow, humidity, hail, baking heat, or rains also affects their lifespan.


Animals need to be loved by their owner. An emotional bond with the owner or family makes your pets happier and relaxed. The more you care, the more healthy your pet will be. Love and care help pets to increase their life expectancy.


We all want proper nutrition to grow, and the same goes for pets. You need to feed high-quality, fresh, and appropriate food to your pet animal.

Many health problems in pets develop because of poor or inadequate nutrition. Life expectancy depends on healthy and nutritious food. And growing pets usually face obesity and other health complications.


Last but not least, some animal species can live longer, and some live less. Poor breeding also causes genetic defects. As a pet owner, you must buy a pet after understanding medical conditions and comparing different breeds.

While it is absolutely true that larger animal species manage to survive longer, on average, it is also correct that in a species, smaller animals often live longer than bigger ones.

Wrapping Up

Historically, the method of “one dog year equals seven human years” was made to show that dogs age faster than human beings. However, today, researchers and scientists have created a more specific method to calculate the animal years to human years.

Alfred A. Montapert said, “animals are reliable, full of love, true in their affections, predictable in their actions, grateful and loyal. Difficult standards for people to live up to.”

We hope this article helped you in learning animal years to human years. You might have got enough knowledge about methods of calculating exact animal years to human years. 

Do let us know in the comment section which animal’s years you want to calculate to human years.

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