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Large Breed Puppy Growth Charts

Large breeds grow for a long time, and steady matters more than fast. Most large puppies approach adult weight around 18 months, gaining quickly early on and then filling out slowly.

Typical adult weight50–90 lb
Usually mature byAbout 18 months
Breeds covered21 growth charts

Most large breeds approach adult weight around 18 months. Rapid early growth stresses developing joints, so keep gains steady.

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Large breed growth charts

Large puppy growth FAQ

How much should a large breed puppy weigh?

Adult large breeds typically weigh between 50 and 90 lb. Males are usually heavier than females. Enter your puppy’s measurements in the calculator for a personal range.

When do large breed puppies stop growing?

Most large puppies reach adult weight around 18 months, and may keep adding muscle into their second year. Slow, steady growth is the healthy pattern.

Should large puppies grow as fast as possible?

No. Controlled, steady growth protects developing joints in large breeds. Feed a large-breed puppy formula in measured meals and ask your vet to review the growth curve.

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Use the puppy weight calculator to estimate your puppy's adult weight from their current age and weight.