Science-based converter
Convert dog years to human years with modern veterinary logic.
The first two years matter most, then the pace changes by size class for a far more realistic human equivalent age.
Dog Age Input
Enter your dog’s calendar age and pick a weight class to generate a more realistic human equivalent age.
Result
Human Equivalent Age
Medium (21-50 lbs)
Based on the science-based conversion model
—human years
Click calculate to display the human equivalent age here with a smooth, clean visual update.
Year 1
15 human years
Year 2
24 human years
After age 2
By size class