Dog Age Calculator
The "×7" rule is a myth — a dog's size changes the answer by years. Pick the breed and we'll use that breed's own ageing curve and lifespan.
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By age
Every age from 1 to 20 — pick the one you need.
Puppies, by month
By breed
Pick your breed for an age chart built on that breed's actual size and lifespan.
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How the math works
A dog's first year is worth about 15 human years and the second about nine more, taking a two-year-old to roughly 24. After that each dog year adds four (small breeds) to eight (giant breeds). That is why a seven-year-old Chihuahua is middle-aged while a seven-year-old Great Dane is already elderly.
Put this calculator on your own site
Free for any site — breeders, rescues, vets and pet blogs included. All 82 breeds, no scripts, no cookies, nothing tracked.
Paste that one line anywhere in your HTML. Adjust height if you need it shorter. A credit link back to CalcBunch stays in the widget — that's the only condition. More about the widgets.