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Puppy Weight Calculator & Breed Size Growth Schedule

Many new puppy owners wonder if their dog will grow to be big for its breed, small for its breed, or spot on average. That is if you even know your puppy's breed at all! Use our handy puppy weight calculator to get an accurate idea of how much your doggo will weigh when it's fully grown. 

Is your wriggly puppy growing like a weed before your eyes? It always seems to happen more quickly than we expect. 

How big will my puppy get?

Whether you've adopted a pure-breed and have a good idea of size averages or adopted a mystery pup that could end being 20 or 80 pounds at the 1-year mark, you’ve probably wondered, “How big will my dog get?” 

That's why we built this easy formula to give you a rough estimate on how big your dog will grow. It's not perfect, but this dog weight calculator gives a reasonably good indicator of how much weight you'll be lugging along on adventures once your pup is fully grown into an adult dog.

Follow our dog size chart broken down by breed and use our formula to find out just how big your furry pal will get. 

How big will my puppy get?

It's the age-old question every new owner wants to know. There's the old notion that the paws will tell you, but they're not exactly a measurable indicator you can use with any accuracy. 

These days, the best way to tell how big your dog will be is with a puppy height and weight calculator. By taking your puppy's current weight, dividing it by their age, and multiplying by 52, you can get a better idea of how big your pup will be by the time they hit their first birthday. 

When do dogs stop growing?

For most pups, they stop growing between 1-2 years. On average, dogs take 12 months to mature, but the larger the breed, the longer the process, with giant breeds tending to take the entire two years to reach their full height and weight potential. 

Because our puppy weight calculator uses a one-year timespan, you might find your dog getting a little larger than the calculation. If you'd like, adjust the number 52 (52 weeks for a 1-year measurement) to a higher number. Though beware that growth starts to taper off after the 1-year mark, so the measurement will become less and less accurate with any adjustments you make. 

How heavy should my dog be?

In the quest to find out "how big will my puppy get," knowing your dog's general breed and size category, will usually let you count on some basic generalizations to get an idea of the puppy growth range you're looking at in terms of weight.

  • Toy breed: < 12 lb / < 5.4 kg
  • Small breed: 12 - 22 lb / 5.4 - 10 kg
  • Med. breed: 22 - 57 lb / 10 - 25.9 kg
  • Large breed: 57 - 99 lb / 25.9 - 44.9 kg
  • Giant breed: >99 lb / >44.9 kg

If you have a mixed breed pup, it can get a little more complicated, which is where the puppy adult weight calculator comes in handy. 

How tall will my dog be?

The height of any dog measures from paw to shoulders, and, like weight, most breed sizes have a standard height range. 

  • Toy breed: Max. 12 in (30.5 cm)
  • Small breed: Max. 18 in (45.7 cm)
  • Med. breed: Max. 25 in (63.5 cm)
  • Large breed: Max. 30 in (76.2 cm)
  • Giant breed: Max. 44 in (111.8 cm)

Breed Size Categories & Puppy Growth

As you can see, there's a significant variation between the teeny tiny toy breeds and giant dog breeds. Along with noticeable size differences, they tend to hit different growth stages at different times. 

Read a little more about each size category and consult our list to see which category your doggo belongs in. 

#1: Toy Dog Breed Growth

Tiny toy breeds range from just 1 or 2 pounds and up to 12 - even the biggest toy pups could get blown over by a gust of wind. Their small size helps them to mature more quickly than all other breeds. Their puppy schedule helps them grow into their adult weights by the 8 - 9 month mark. 

A toy puppy gains 5 - 10% of its body weight daily, which only adds up to a few ounces per week. Their most significant growth spurt happens between 0 - 11 weeks and tapers off slowly until they're fully grown.

Common Toy Breeds

  • Chihuahua  
  • Pug  
  • Affenpinscher  
  • Yorkshire Terrier
  • Brussels Griffon  
  • Pekingese  
  • Pomeranian  
  • Cavalier King Charles Spaniel  
  • Chinese Crested Dog  
  • English Toy Spaniel  
  • Havanese  
  • Italian Greyhound  
  • Japanese Chin  
  • Maltese  
  • Miniature Pinscher
  • Papillon  
  • Shih-Tzu  
  • Silky Terrier  
  • Toy Fox Terrier  
  • Toy Manchester Terrier  
  • Toy Poodle  

#2: Small Dog Breed Growth

Small breeds are one step up from toy breeds, but they grow in an almost identical manner to toys than large breed counterparts. 

Small breeds gain 5 - 10% of their body weight daily and grow the most between 0 - 11 weeks. A small dog generally takes slightly longer than a toy breed to reach its adult weight, between 8 - 12 months. 

Common Small Breeds

  • Cocker Spaniel  
  • American Cocker Spaniel  
  • Beagle  
  • Boston Terrier  
  • Cairn Terrier  
  • Cavalier King Charles Spaniel  
  • Cesky Terrier  
  • Chinese Foo  
  • Cirneco dell'Etna  
  • Tibetan Terrier  
  • Welsh Terrier  
  • Coton de Tulear  
  • Dachshund  
  • Dandie Dinmont Terrier  
  • French Bulldog  
  • German Spitz  
  • Icelandic Sheepdog  
  • Lakeland Terrier  
  • Lhasa Apso  
  • Lowchen  
  • Manchester Terrier
  • Miniature Australian Shepherd  
  • Scottish Terrier  
  • Miniature Poodle  
  • Miniature Schnauzer  
  • Norwegian Lundehund  
  • Parson Russell Terrier  
  • Portuguese Podengo  
  • Pug  
  • Pumi  
  • Rat Terrier  
  • Schipperke   
  • Shetland Sheepdog  
  • Shiba Inu  
  • Skye Terrier  
  • Smooth Fox Terrier  
  • West Highland White Terrier  
  • Wire Fox Terrier  
  • Sealyham Terrier
  • Xoloitzcuintli  

#3: Medium Dog Breed Growth

Medium-sized dog breeds tend to reach their adult weight around 9 - 10 months old. Their big growth spurt lasts a little longer than smaller breeds, between 0 - 16 weeks. 

Common Medium Breeds

  • Australian Shepherd  
  • American Water Spaniel  
  • Australian Cattle Dog  
  • Bulldog  
  • Australian Kelpie  
  • Azawakh  
  • Barbet  
  • Brittany Spaniel  
  • Basenji  
  • Basset Hound  
  • Bearded Collie  
  • Bedlington Terrier  
  • Border Collie  
  • Canaan Dog  
  • Cardigan Welsh Corgi  
  • Chinese Chongqing Dog  
  • Finnish Lapphund  
  • Chinese Foo  
  • Dalmatian  
  • English Cocker Spaniel  
  • English Springer Spaniel  
  • Entlebucher Mountain Dog  
  • Field Spaniel  
  • Finnish Spitz  
  • Jindo
  • German Pinscher  
  • German Spitz  
  • Glen of Imaal Terrier  
  • Grand Basset Griffon Vendeen  
  • Harrier  
  • Ibizan Hound   
  • Kai Ken  
  • Keeshond  
  • Kerry Blue Terrier  
  • Kishu Ken  
  • Norwegian Buhund 
  • Kooikerhondje  
  • Lagotto Romagnolo  
  • Miniature Bull Terrier  
  • Mudi  
  • Norrbottenspets   
  • Norwegian Elkhound  
  • Nova Scotia Duck Tolling Retriever
  • Pembroke Welsh Corgi  
  • Portuguese Water Dog  
  • Peruvian Inca Orchid  
  • Petit Basset Griffon Vendeen  
  • Polish Lowland Sheepdog  
  • Portuguese Podengo  
  • Portuguese Pointer  
  • Puli  
  • Samoyed  
  • Schapendoes  
  • Small Munsterlander Pointer  
  • Soft Coated Wheaten Terrier  
  • Spanish Water Dog  
  • Stabyhoun  
  • Xoloitzcuintli
  • Staffordshire Bull Terrier  
  • Standard Schnauzer  
  • Sussex Spaniel  
  • Swedish Lapphund  
  • Swedish Vallhund  
  • Treeing Tennessee Brindle  
  • Welsh Springer Spaniel  
  • Whippet  

#4: Large Dog Breed Growth

Looking at the puppy growth chart, large breeds take quite a while to reach full size. Generally, a large doggo stops growing between 12 - 18 months and weighs between 50 and 100 pounds. 

Their big growth spurt phase starts at 0 weeks and finishes at around 20 weeks of age. 

Common Large Breeds

  • Afghan Hound  
  • Airedale Terrier  
  • Alapaha Blue Blood Bulldog  
  • Alaskan Malamute  
  • American English Coonhound  
  • Berger Picard  
  • American Foxhound  
  • American Staffordshire Terrier  
  • Akita  
  • Appenzeller Sennenhunde  
  • Argentine Dogo  
  • Beauceron  
  • Belgian Laekenois  
  • Belgian Malinois  
  • Belgian Sheepdog  
  • Borzoi  
  • Belgian Tervuren  
  • Bergamasco  
  • Bernese Mountain Dog  
  • Black & Tan Coonhound  
  • Bloodhound  
  • Bluetick Coonhound  
  • Bouvier des Flandres  
  • Boxer  
  • Bracco Italiano  
  • Collie  
  • Briard  
  • Briquet Griffon Vendeen  
  • Bull Terrier  
  • Cane Corso  
  • Catahoula Leopard Dog  
  • Chesapeake Bay Retriever  
  • Chinook  
  • Chow Chow  
  • Clumber Spaniel  
  • Redbone Coonhound  
  • English Setter  
  • Curly Coated Retriever  
  • Czechoslovakian Wolfdog  
  • Doberman Pinscher
  • English Foxhound  
  • Estrela Mountain Dog  
  • Eurasier  
  • Fila Brasileiro  
  • Flat-Coated Retriever  
  • German Shepherd Dog  
  • German Shorthaired Pointer  
  • German Wirehaired Pointer  
  • Giant Schnauzer  
  • Golden Retriever  
  • Gordon Setter  
  • Labrador Retriever  
  • Greyhound  
  • Irish Setter  
  • Irish Water Spaniel  
  • Karelian Bear Dog  
  • Maremma Sheepdog  
  • Old English Sheepdog  
  • Otterhound  
  • Pharaoh Hound  
  • Plott  
  • Pointer  
  • Portuguese Podengo  
  • Red and White Setter  
  • Rhodesian Ridgeback  
  • Rottweiler  
  • Saluki  
  • Shar-Pei  
  • Siberian Husky  
  • Treeing Walker Coonhound  
  • Sloughi  
  • Spinone Italiano  
  • Standard Poodle  
  • Thai Ridgeback  
  • Vizsla  
  • Weimaraner  
  • Wirehaired Pointing Griffon  
  • Wirehaired Vizsla

#5: Giant Dog Breed Growth

These big, furry doggos are usually the sweetest of the bunch despite weighing over 100 pounds. A giant breed tends to reach adult size the slowest, finishing their growth 12 - 18 months, but possibly as long as three years.

A giant dog gains 2 - 5 lbs of puppy weight per week during puppyhood, with a massive growth spurt that lasts between 0 - 25 weeks. 

Common Giant Breeds

  • Akbash Dog
  • Anatolian Shepherd
  • Bernese Mountain Dog
  • Caucasian Ovcharka
  • Black Russian Terrier
  • Boerboel
  • Bullmastiff
  • Central Asian Shepherd Dog
  • Dogue de Bordeaux
  • Kuvasz
  • Great Dane
  • Great Pyrenees
  • Greater Swiss Mountain Dog
  • Irish Wolfhound
  • Komondor
  • Leonberger
  • Mastiff
  • Saint Bernard
  • Neapolitan Mastiff
  • Newfoundland
  • Perro de Presa Canario
  • Rafeiro do Alentejo
  • Scottish Deerhound
  • Tibetan Mastiff
  • Tosa

Ultimate Puppy Weight Calculator: Determine your Dog's Fully-Grown Size

Here's the simple formula to estimate your individual dog's size at the one-year mark, regardless of breed. 

Puppy's Adult Weight = (Puppy's Weight in lbs ÷ Puppy's Age in Weeks) x 52 

Just like in math class, follow BEDMAS - the brackets matter! Be sure to complete the division first, then multiply that total by 52 to calculate the results correctly.

Let's take a look at a quick weight calculation example. 

If your medium-sized pup weight 12 lbs at 16 weeks of age, you'd:

12 lbs ÷ 16 weeks = 0.75

0.75 x 52 = 39 lbs at adult weight. 

Final Notes on Our Puppy Growth Chart

While this formula isn't a perfect system, it'll help get you pretty close to understanding and planning for your dog's fully grown size. 

You may need to think about outfitting your home with a bed ramp for dogs, especially if you have a giant breed - though they can easily jump on the couch and bed, they tend to have poorly-formed joints. 

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