Free Dog & Cat Age in Human Years Calculator Online
Calculate canine and feline age into human years accurately, taking into account dog breed size (toy, small, medium, large, and giant). — 100% free online utility, zero sign-up, zero paywalls, and private client-side processing.
How It Works
Select Pet Type
Choose Dog or Cat.
Select Breed Size
For dogs, choose Small (<20 lbs), Medium (21-50 lbs), Large (51-90 lbs), or Giant (>90 lbs).
Enter Current Pet Age
Input calendar age in years and months.
View Human Equivalent
Inspect biological human age equivalent and life stage.
Frequently Asked Questions
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