Use this rat years to human years calculator to find out how long do rat live in human years, a one year old rat is approximately 30 years old in human years.
- A 2-year-old rat (24 months) is approximately 60 human years old.
- A 5-year-old rat (60 months) is approximately 148 human years old.
Rat Years to Human Years Calculator
| Rat Age (Months) | Human Age Equivalent (Years) |
|---|---|
| 1 | 18 |
| 3 | 18 |
| 6 | 18 |
| 9 | 30 |
| 12 | 30 |
| 15 | 45 |
| 18 | 45 |
| 21 | 60 |
| 24 | 60 |
| 30 | 75 |
| 36 | 90 |
| 39 | 105 |
| 42 | 105 |
| 45 | 113 |
| 48 | 120 |
| 54 | 134 |
| 60 | 148 |
More Calculators : – Dog Years to Human Years – Guinea Pig Years to Human Years
Rat Age in Human Years Conversion Formula
- For the first 6 months, a rat is equivalent to an 18-year-old human.
- From 7 to 12 months, a rat is equivalent to a 30-year-old human.
- From 13 to 18 months, a rat is equivalent to a 45-year-old human.
- From 19 to 24 months, a rat is equivalent to a 60-year-old human.
- From 25 to 36 months, the human age increases linearly from 60 to 90 years.
- From 37 to 42 months, a rat is equivalent to a 105-year-old human.
- From 43 to 45 months, a rat is equivalent to a 113-year-old human.
- After 45 months, the human age continues to increase linearly.
What are Different Species of Rat?
While the age calculator we’ve discussed is typically used for pet rats, it’s worth noting that there are various species of rats, each with its own characteristics and lifespans. Here are some of the most common and well-known rat species:
- Norway Rat (Rattus norvegicus): Also known as the brown rat or street rat, this is the most common species kept as pets and used in laboratory research. They typically live 2-3 years in captivity.
- Black Rat (Rattus rattus): Also called the roof rat or ship rat, this species is smaller than the Norway rat and has a longer tail. They are less common as pets.
- Polynesian Rat (Rattus exulans): Native to Southeast Asia, this smaller species has spread to many Pacific islands.
- Bush Rat (Rattus fuscipes): An Australian native species that prefers forested areas.
- Rice Field Rat (Rattus argentiventer): Common in Southeast Asia, particularly in agricultural areas.
- Giant Pouched Rat (Cricetomys gambianus): Native to Africa, these large rats are known for their ability to detect land mines and diagnose tuberculosis.
- Fancy Rats: These are domesticated variants of the Norway rat, bred for specific colors and coat types. They are the most common type of pet rat.
