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Puppy Weight Calculator - How Big Will My Puppy Get?

Predict your puppy's adult weight based on their current age and size. Get an estimated weight range and growth timeline.

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Wondering how big your puppy will grow? Our free puppy weight calculator helps you estimate your dog's adult size based on their current age and weight.

How It Works

Puppies grow at different rates depending on their size category. Small breeds typically reach adult size by 10-12 months, while giant breeds may continue growing until 18-24 months.

Enter your puppy's current details below to get a personalized weight prediction.

Why Track Your Puppy's Growth?

  • Plan ahead for food, crate, and supply needs
  • Monitor health by ensuring proper growth rate
  • Share with your vet during checkups

Optional - leave blank for a generic result

Select based on breed or parent size

Select your puppy's age in weeks

Enter your puppy's current weight