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Continue ShoppingDirect answer: a rough rule of thumb estimates adult weight as current weight ÷ age in weeks × 52. Enter your puppy’s current weight and age below. Real adult size depends heavily on breed — use this as a ballpark and confirm with your vet or breeder.
Estimatenot medical advice
Free toolby Hype Pups
Ask your vetfor health decisions
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In 3 steps
- Weigh your puppy now (kg).
- Note their current age in weeks.
- Enter both for a ballpark adult-weight range, then size clothes up as they grow.
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Puppy Growth Calculator — FAQ
How big will my puppy get?
A rough estimate is current weight ÷ age in weeks × 52. Breed matters most, so treat it as a ballpark and ask your breeder or vet.
When do puppies stop growing?
Small breeds finish around 9–12 months; large and giant breeds can grow until 18–24 months. The estimate is least reliable for very young or giant-breed pups.
Should I buy clothes for my puppy now?
Buy for the current size and size up as they grow — puppies outgrow clothes quickly. Use our size calculators to re-check.
Is this exact?
No — it’s a ballpark. Breed, nutrition, and genetics all shift the result.
Designer fits for every dog
Free shipping over $75 · 14-day exchanges. This tool is a general estimate, not veterinary advice.