Puppies grow at wildly different rates depending on how big they end up. A toy breed is already a third of its adult weight at eight weeks; a Great Dane is not yet a fifth of the way there. This calculator estimates the adult weight your puppy is heading for, using growth curves built from the veterinary records of millions of young dogs.
Estimate your puppy’s adult weight
Enter your puppy's age and current weight to estimate the adult weight, and see how that compares with healthy growth curves.
Your estimate will appear here, with a growth curve showing where your puppy sits against dogs of the same adult size.
Estimates only, not veterinary advice. Growth curves are derived from Salt et al. (2017), built from bodyweight records of millions of young dogs and used under CC BY 4.0. Adult weight ranges follow the American Kennel Club breed standards.
How it works
Two numbers get you an answer. The rest just sharpens it.
Weigh them, note the age
That is genuinely all you need. The calculator figures out which size class your puppy is heading for.
Add the breed if you know it
This anchors the estimate to that breed’s adult range from the AKC standard, and splits the answer by sex.
Check back as they grow
One weigh-in tells you less than a trend. A puppy holding a steady line is the thing worth watching.
Where to go next
The same growth data, cut four different ways.
- Breed weight chartsMonth-by-month tables for individual breeds, with adult ranges by sex.
- Charts by size classCompare growth across toy, small, medium, large and giant breeds.
- Growth guidesHow growth works, when it stops, and how to read a body condition score.
- The growth dataThe table behind every chart here, how it was derived, and a CSV.
Popular breeds
Ordered by how often people look them up.
German Shepherd Weight Chart by Age
German Shepherd weight chart by month. Males reach 65.0–89.9 lb (29.5–40.8 kg), females 50.0–70.1 lb (22.7–31.8 kg). Month-by-month…
Golden Retriever Weight Chart by Age
Golden Retriever weight chart by month. Males reach 65.0–75.0 lb (29.5–34.0 kg), females 54.9–65.0 lb (24.9–29.5 kg). Month-by-month…
Rottweiler Weight Chart by Age
Rottweiler weight chart by month. Males reach 95.0–134.9 lb (43.1–61.2 kg), females 80.0–100.1 lb (36.3–45.4 kg). Month-by-month healthy…
French Bulldog Weight Chart by Age
French Bulldog weight chart by month. Males reach 20.1–28.0 lb (9.1–12.7 kg), females 17.0–24.0 lb (7.7–10.9 kg). Month-by-month…
Dachshund Weight Chart by Age
Dachshund weight chart by month. Males reach 16.1–32.0 lb (7.3–14.5 kg), females 16.1–32.0 lb (7.3–14.5 kg). Month-by-month healthy…
Pembroke Welsh Corgi Weight Chart by Age
Pembroke Welsh Corgi weight chart by month. Males reach 22.0–26.5 lb (10.0–12.0 kg), females 19.8–24.3 lb (9.0–11.0 kg).…
Shih Tzu Weight Chart by Age
Shih Tzu weight chart by month. Males reach 9.0–16.1 lb (4.1–7.3 kg), females 9.0–16.1 lb (4.1–7.3 kg). Month-by-month…
Yorkshire Terrier Weight Chart by Age
Yorkshire Terrier weight chart by month. Males reach 4.0–7.1 lb (1.8–3.2 kg), females 4.0–7.1 lb (1.8–3.2 kg). Month-by-month…
Growth guides
Short explainers on what the numbers mean.
Puppy Growth Chart by Age: All Sizes in lb
Puppy growth chart by age for all five size classes, from toy to giant. See expected weight ranges…
Dog Body Condition Score: The 1-9 Scale Explained
How to read the 9-point canine body condition score. What each score means, the three checks to do…