Reptile Age Calculator
Quick answer: A 1-year-old reptile is approximately 12 human years old. After the first year, aging varies by species — tortoises age about 8 human years per year, while lizards age about 4. Our formulas are sourced from the Association of Reptilian and Amphibian Veterinarians (ARAV).
Reptile Age Calculator
How Reptile Aging Works
- •First year: ~12 human years
- •Turtles/Snakes: +5 human years per year
- •Tortoises: +8 human years per year
- •Lizards: +4 human years per year
Source: Association of Reptilian and Amphibian Veterinarians (ARAV)
Frequently Asked Questions
How do I calculate my reptile's age in human years?
Select your reptile type, enter their age in years, and click "Calculate Human Age."
How long do tortoises live?
Tortoises can live 80-150+ years, making them one of the longest-lived pets on Earth.
Does this calculator replace veterinary advice?
No. Our calculator is an educational tool. For health concerns, consult a qualified reptile veterinarian.