Dog Weight Calculator - How Big Will Your Puppy Get?
Maybe your like
Enter your puppy’s current age and weight to estimate how big they will get as an adult.
Current Agedaysweeksmonths Current Weightozlbsgkg Breed (optional)Select BreedAffenpinscherAfghan HoundAiredale TerrierAkitaAlaskan MalamuteAmerican English CoonhoundAmerican Eskimo Dog (toy)American Eskimo Dog (miniature)American Eskimo DogAmerican FoxhoundAmerican Hairless TerrierAmerican Staffordshire TerrierAnatolian Shepherd DogAustralian Cattle DogAustralian ShepherdAustralian TerrierBasenjiBasset HoundBeagleBearded CollieBeauceronBedlington TerrierBelgian MalinoiBelgian SheepdogBelgian TervurenBergamascoBerger PicardBernese Mountain DogBichons FriseBlack and Tan CoonhoundBlack Russian TerrierBloodhoundBluetick CoonhoundBoerboelBorder CollieBorder TerrierBorzoiBoston TerrierBouviers des FlandreBoxerBriardBrittany SpanielBrussels GriffonBull TerrierBulldogBullmastiffCairn TerrierCanaan DogCardigan Welsh CorgiCavalier King Charles SpanielCesky TerrierChihuahuaChinese CrestedChinese Shar-PeiChinookChow ChowCirnechi dell'EtnaCollieCoton de TulearDachshund (miniature)DachshundDalmatianDandie Dinmont TerrierDoberman PinscherEnglish FoxhoundEnglish Toy SpanielEntlebucher Mountain DogFinnish LapphundFinnish SpitzFrench BulldogGerman PinscherGerman Shepherd DogGiant SchnauzerGlen of Imaal TerrierGreat DaneGreat PyreneeGreater Swiss Mountain DogGreyhoundHarrierHavaneseIbizan HoundIcelandic SheepdogIrish TerrierIrish WolfhoundItalian GreyhoundJapanese ChinKeeshondenKerry Blue TerrierKomondorokKuvaszokLagotti RomagnoliLakeland TerrierLeonbergerLhasa ApsoLowchenMalteseManchester Terrier (toy)Manchester TerrierMastiffMiniature American ShepherdMiniature Bull TerrierMiniature PinscherMiniature SchnauzerNeapolitan MastiffNewfoundlandNorfolk TerrierNorwegian BuhundNorwegian ElkhoundNorwegian LundehundNorwich TerrierOld English SheepdogOtterhoundPapillonParson Russell TerrierPekingesePembroke Welsh CorgiPetits Bassets Griffons VendeenPharaoh HoundPlottPointerPointer (German Shorthaired)Pointer (German Wirehaired)Polish Lowland SheepdogPomeraniansPoodle (toy)Poodle (miniature)PoodlePortuguese Podengo PequenoPortuguese Water DogPugPulikPumikPyrenean ShepherdRat TerrierRedbone CoonhoundRetriever (Chesapeake Bay)Retriever (Curly-Coated)Retriever (Flat-Coated)Retriever (Golden)Retriever (Labrador)Retriever (Nova Scotia Duck Tolling)Rhodesian RidgebackRottweilerRussell TerrierSalukiSamoyedSchipperkeScottish DeerhoundScottish TerrierSealyham TerrierSetter (English)Setter (Gordon)Setter (Irish Red and White)Setter (Irish)Shetland SheepdogShiba InuShih TzuSiberian HuskieSilky TerrierSkye TerrierSloughiSoft Coated Wheaten TerrierSpaniel (American Water)Spaniel (Boykin)Spaniel (Clumber)Spaniel (English Cocker)Spaniel (English Springer)Spaniel (Field)Spaniel (Irish Water)Spaniel (Sussex)Spaniel (Welsh Springer)Spanish Water DogSpinoni ItalianiSt. BernardStaffordshire Bull TerrierStandard SchnauzerSwedish VallhundTibetan MastiffTibetan TerrierTibetan SpanielToy Fox TerrierTreeing Walker CoonhoundVizslaWeimaranerWelsh TerrierWest Highland White TerrierWhippetWirehaired Pointing GriffonWirehaired VizslaXoloitzcuintli (toy)Xoloitzcuintli (miniature)XoloitzcuintliYorkshire Terrier Question Mark Icon Close dialogHave a Question or Feedback?
Name (optional) Email (optional) Question or Feedback Submit Feedback
Results: Dog's Adult Weight
lbs Learn how we calculate this below Share Icon Share Results Embed IconAdd This to Your Site Close dialogShare This Result
Facebook Icon Share on Facebook X Icon Share on X Pinterest Icon Share on Pinterest LinkedIn Icon Share on LinkedIn Link to Results: Copy ✓ Copied! Error! Cite This Page: Copy ✓ Copied! Error!On this page:
Show/hide table of contents Chevron Down Icon- Dog Weight Calculator
- How to Estimate How Big Your Puppy Will Get
- Method One: Puppy Growth Formula
- Method Two: Refer to the Average Adult Weights for Breed
- Method Three: Check the Parents’ Weight
- Puppy Size Chart
- How Fast Do Puppies Gain Weight?
- Puppy Growth Chart
- When do Dogs Stop Growing?
- References
Joe is the creator of Inch Calculator and has over 20 years of experience in engineering and construction. He holds several degrees and certifications.
Full bioChevron Right Icon Review Badge Icon Reviewed by Jamie Whittenburg, DVM
Dr. Jamie Whittenburg is a practicing veterinarian with more than 16 years of experience caring for pets. Dr. Whittenburg works with cats, dogs, and small exotic animals and she has a special interest in feline medicine and surgery.
Full bioChevron Right Icon Link Icon Copy Link Facebook Icon Share on Facebook X Icon Share on X Pinterest Icon Share on Pinterest Cite Icon Cite Close dialogCite This Page
Sexton, J. (n.d.). Dog Weight Calculator – How Big Will Your Puppy Get? Inch Calculator. Retrieved January 19, 2026, from https://www.inchcalculator.com/puppy-weight-calculator/How to Estimate How Big Your Puppy Will Get
If you have a puppy, you might be wondering how big they will get as they grow. Several factors influence this, including breed, sex, genetics, diet, and their amount of exercise.[1]
There are several methods to estimate how big a puppy will get as an adult. The first and simplest way is to use a basic formula, which is how the calculator above estimates a puppy’s growth.
Method One: Puppy Growth Formula
You can use the following formula to estimate how big your dog will get:
Adult Size = Current Weight / Age in Weeks × 52
This formula is most accurate for breeds that mature in 12 months (52 weeks), but some breeds mature much more quickly or slowly. Larger breeds tend to reach their adult weight in 18 months, while small breeds reach their adult weight in as little as 6-8 months.
Another variation of this formula is to double their weight at 6 months of age to get an approximate adult weight.
Method Two: Refer to the Average Adult Weights for Breed
Given that breed is the largest factor impacting how big a dog will get, referencing the information about their breed is a great way to get a ballpark of what size your puppy might be when they grow up.
The American Kennel Club published a comprehensive list of the adult size ranges for hundreds of dog breeds, which serves as a great reference for this.[2] The chart below highlights the adult sizes for some common breeds.
Small Breeds
- Pugs: 14-18 lbs
- Chihuahuas: <6 lbs
- Dachshunds: 16-32 lbs
Medium Breeds
- Basset Hounds: 40-65 lbs
- Collies: 30-55 lbs
- Huskies: 35-60 lbs
Large Breeds
- Labrador Retrievers: 55-80 lbs
- German Shepherds: 50-90 lbs
- Alaskan Malamutes: 75-85 lbs
Extra-Large Breeds
- Bullmastiffs: 100-130 lbs
- Great Danes: 110-175 lbs
- St. Bernards: 120-180 lbs
Method Three: Check the Parents’ Weight
Another method to estimate a dog’s adult weight is to look at the weights of its parents. While other factors do play a role, this is a reasonable way to estimate their size when the puppy is fairly young.
For example, you can average the weights of both parents to get a good idea of the pup’s adult weight. It’s important to note that female dogs will tend to be closer to the size of the mother and males to the father.
This method is not likely to be precise if the parents are vastly different sizes.
You might also be interested in tracking how old your dog is in human years as they grow.
Puppy Size Chart
As we mentioned above, the fully-grown size of a dog will vary by its breed. Breeds are commonly subdivided into four different size ranges: small, medium, large, and extra-large.
| Size | Weight Range |
|---|---|
| Small | 2-22 lbs (1-10 kg) |
| Medium | 23-57 lbs (11-26 kg) |
| Large | 58-99 lbs (27-45 kg) |
| Extra-Large | 100+ lbs (46+ kg) |
These size ranges are sometimes subdivided. For instance, the small category is sometimes divided into toy, teacup, miniature, and standard small sizes.