Convert Cat to Human Age Chart and Calculator
Topic: Medical Calculators and Charts
Ian C. Langtree - Content Writer/Editor for Disabled World
Published: 2021/06/16 - Updated: 2024/09/15
Publication Type: Charts, Graphs, Tables
Contents: Summary - Introduction - Main Item - Related Topics
Synopsis: Chart and calculator provide quick conversion of a cats age in years to an approximate equivalent human age. Cats age much more quickly in their first two years of life and then the aging process slows down and continues more steadily in that for every human 2 years, each cat year equals approximately 4 human years. On average, indoor cats may live from 12 to 18 years, and many even survive into their 20's.
Introduction
Unlike dogs - who have different human age equivalents depending on their size - the conversion method for cat to human age is universal because cats are all roughly the same size. However, when comparing cat years versus human years there is no "true" mathematical formula. Nor, does one cat year equal seven human years as the age of a cat does not follow a linear curve compared with human age.
Main Item
Like many other animals, "childhood" and "adolescence" occur much faster than in humans. Kittens, when compared to newborn babies of human, grow very fast - especially in their first 6 months - before reaching puberty at about 6 to 8 months old. When they reach the age of 6 to 12 months, you can consider them to be the equivalent of at least 10 human years.
Cats age much more quickly in their first two years of life and then the aging process slows down and continues more steadily in that for every human 2 years, each cat year equals approximately 4 human years. Veterinarians generally agree that the first 2 years of a cat's life are roughly equal to the first 25 years of a human life.
Keep in mind that felines who live outside (outdoor cats) tend to age far more quickly - sometimes twice as fast - than an indoor cat. On average, indoor cats may live from 12 to 18 years, and many even survive into their 20's. Whereas outdoor cats face greater threat of accident and/or illnesses, and average around 10 years of age.
Cat Age Equivalent in Human Years Calculator
Cat Age In Human Years Conversion Table
Vets have established an approximate correlation cat age chart to see an equivalence in human age. The chart listed below shows the 6 stages of cat development as well as the equivalent human age. Though not an exact science the chart below also indicates how cats mature at a much faster rate than humans do.
| Cats Age | Human Equivalent | Stage of Cats Life |
|---|---|---|
| 1 Month | 1 Year | Kitten |
| 2 Months | 3 Years | Kitten |
| 3 Months | 5 Years | Kitten |
| 4 Months | 7 Years | Kitten |
| 5 Months | 9 Years | Kitten |
| 6 Months | 11 Years | Kitten |
| 12 Months | 16 Years | Junior |
| 18 Months | 20 Years | Junior |
| 2 Years | 24 Years | Junior |
| 3 Years | 28 Years | Prime |
| 4 Years | 32 Years | Prime |
| 5 Years | 36 Years | Prime |
| 6 Years | 40 Years | Prime |
| 7 Years | 44 Years | Mature |
| 8 Years | 48 Years | Mature |
| 9 Years | 52 Years | Mature |
| 10 Years | 56 Years | Senior |
| 11 Years | 60 Years | Senior |
| 12 Years | 64 Years | Senior |
| 13 Years | 68 Years | Senior |
| 14 Years | 72 Years | Senior |
| 15 Years | 76 Years | Super Senior |
| 16 Years | 80 Years | Super Senior |
| 17 Years | 84 Years | Super Senior |
| 18 Years | 88 Years | Super Senior |
| 19 Years | 92 Years | Super Senior |
| 20 Years | 96 Years | Super Senior |
| 21 Years | 100 Years | Super Senior |
| 22 Years | 104 Years | Super Senior |
| 23 Years | 108 Years | Super Senior |
| 24 Years | 112 Years | Super Senior |
| 25 Years | 116 Years | Super Senior |
| 38 Years | 168 Years | Super Senior |
How to Tell a Cats Real Age
Veterinarians can tell a cat's true age by studying their:
- Size
- Ears
- Eyes
- Weight
- Behavior
- Blood work
- Body condition
- Medical history
- Teeth and gums
- Physical examination
Cat Life Stages
There are considered to be six stages of life for cats:
| The Six Stages of a Cats Life | ||
|---|---|---|
| Kitten | 0 to 6 months | The young cat is growing rapidly and is usually not quite sexually mature. |
| Junior | 7 Months to 2 years | The cat reaches full size and learns about life and how to survive it. |
| Prime | 3 to 6 years | The cat is mature physically and behaviorally, is usually healthy and active, looks sleek and shiny and making the best of life. |
| Mature | 7 to 10 years | The cat is what we call "Mature", the equivalent to most humans in their mid-40's to mid-50's. |
| Senior | 11 to 14 years | The cat reaches the equivalent of around 70 human years. |
| Super Senior | 15+ years | Many cats will reach this stage, some do not show signs of being so old. |
Printable Cat Age Chart: Cat Years to Human Years Conversion Table
Convert Dog to Human Age Chart and Calculator: Easy to read table and calculator shows the equivalent dogs age compared to a humans age in years, includes average dog life expectancy in years by breed.
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Cite This Page (APA): Langtree, I. C. (2021, June 16 - Last revised: 2024, September 15). Convert Cat to Human Age Chart and Calculator. Disabled World. Retrieved September 19, 2024 from www.disabled-world.com/calculators-charts/cat-age.php
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