Horse Years to Human Years With Chart

Humans and horses age at a varying pace, meaning an equine year is not the same as a human year. But wait, the calculation is not very straightforward if you consider the horse’s age.  

For the first two years, horses equal 6.5 human years, meaning at 2 years old, a horse is equivalent to a 13-year-old human. Amazing right!

A horse year is equal to 5 human years when it reaches 2 to 3 years of age. Though the rate eventually slows down, it is still faster than humans, with an average of about 2.5 horse years per human year.

By implication, a 5-year-old horse is roughly 23 years old in human years. For the rest of the horse’s life, this rate of equivalency is maintained.

Comprehensive horse years to human years comparison

Horse Age Stage of Life Human Age Stage of Life
1 Foal, Weanling, Yearling 6.5 Infancy, Babyhood, Toddlerhood, Preschooler
2 Two-Year-Old 13 Adolescence / Puberty,
3 Three Year Old 18 Teenager
4 Four Year Old 20.5 Young Adult
5 Physical Maturity 24.5 Adulthood
7 28
10 35.5
13 Middle Aged 43.5 Middle Aged
17 53
20 Senior 60 Senior
24 70.5
27 78 25%-/+ five years is an average lifespan.
30 Extreme Old Age 85.5
33 93
36 100.5

The chart above is a comprehensive reference but do not take it literally. Every horse will age slightly differently based on a variety of factors rather than age.

Just like in humans, many things can influence how many years a horse will live. These include breed, genetics, overall health, size, and lifestyle.

Just like humans, a ton of factors will determine how many years a horse will live. 

Factors That Affect Equine Aging

Some of the factors include:

  • Breed
  • Genetics
  • Overall health 
  • Size
  • Lifestyle

A healthy lifestyle made up of good nutrition can go a long way in keeping a horse healthy. If horses are overlaboured and subjected to prolonged stress with poor nutrition, it will take a toll on their overall health. 

Similarly, if your horse has a health condition that may not appear severe, it can make your horse less resilient and weak. 

Unfortunately, irrespective of our commitment to ensuring our horses live longer, some horses won’t live long. For instance, ponies mature at a faster pace but have a longer life expectancy than most horses. Among equines, Ponies hold the record for longest life spans.

Of course, do remember that all of these are just general rules and just like humans, horses are individuals and may lead much longer or shorter lives than you expect. Pay attention to their health and treat any problems quickly, however minor, and you may be able to help them to live for as long as possible.

It’s important to note that all of the rules are general rules, like humans, some horses may live longer or shorter. The most important thing is to be proactive, treat any conditions immediately, minor or serious, and you may just help them live longer.