Estimate your puppy's adult weight and height based on current age, weight, breed, and parent information. Get accurate predictions for how big your dog will grow.
Estimated Adult Weight
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Weight Range (Min)
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Weight Range (Max)
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Size Category
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Weeks Until Adult Size
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Puppy weight calculators provide estimates with 70-80% accuracy for most breeds. Accuracy improves when breed information and parent weights are included. Mixed breeds and individual genetic variations can affect final size.
Small breeds typically reach adult size by 8-12 months, medium breeds by 12-15 months, and large/giant breeds may continue growing until 18-24 months. Height usually stops before weight fills out completely.
Not necessarily. The smallest puppy (runt) can catch up and sometimes even surpass littermates in size. Proper nutrition and care play important roles in growth potential.
Genetics, breed, nutrition, health, gender, and spay/neuter timing all influence growth. Males typically grow larger than females, and proper nutrition is crucial during the rapid growth phase.
Paw size can give rough estimates, especially for purebreds, but it's not highly accurate. Large paws often indicate a larger adult size, but genetics and breed characteristics are more reliable predictors.
Weigh puppies weekly during the first few months, then monthly as they approach adult size. Regular weighing helps track healthy growth and can identify potential health issues early.
Mixed breeds can be harder to predict as they may inherit traits from either parent breed. Using parent weights and observing which breed characteristics dominate can improve predictions.
Most dogs reach their full height between 8-18 months depending on breed size. Small breeds reach full height around 8-10 months, while giant breeds may take 15-18 months to reach full height.