Dog age calculator
Using a 2020 formula from University of California San Diego researchers, a one-year-old dog is about 31 in human years, a two-year-old about 42 and a four-year-old about 53.
Feeding and Tools
Short answer
Use our calculators and charts to work out how much to feed a puppy, how big it may get and when it stops growing. Each tool shows its formula and source next to the result. Results are starting points to adjust with your veterinarian.
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When do puppies stop growing?
Small breed puppies typically stop growing by 6 to 8 months, medium breeds at about 12 months, and giant breeds between 12 and 18 months, according to the American Kennel Club.
Puppy growth chart
By 6 months, puppies have typically reached about 75 percent of adult weight if small, 66 percent if medium, 60 percent if large and 50 percent if extra-large, according to the American Kennel Club.
How big will my puppy get?
Divide your puppy's weight by the share of adult weight it has usually reached at its age.
Puppy feeding chart and calculator
A puppy under 4 months old needs about three times its resting energy a day, and a puppy over 4 months about two times, according to the Merck Veterinary Manual.
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