1. Add their details
Age, weight, and breed. Add parent weights or a size for mixed breeds.
A little clarity for the growing years
Puppy Weight Calculator
Estimate how big your puppy may get as an adult.
How it works
A few details. An estimate you can understand.
2. Explore their growth
See an adult weight range and a growth chart in lb or kg.
3. Keep it handy
Save your estimate in this browser, or copy it to keep your own record.
Puppy Growth Chart by Size
Adult-size references used by our calculator. Individual dogs mature at different rates; these are model defaults, not targets.
Toy
- Adult weight
- 2–12 lb
- Model maturity
- About 9 months
Small
- Adult weight
- 12–25 lb
- Model maturity
- About 11 months
Medium
- Adult weight
- 25–50 lb
- Model maturity
- About 14 months
Large
- Adult weight
- 50–90 lb
- Model maturity
- About 18 months
Giant
- Adult weight
- 90–200 lb
- Model maturity
- About 24 months
Not sure about your puppy's size? Try the mixed breed calculator.
Have a Mixed Breed Puppy?
Mixed breed puppies can be harder to predict, but our calculator uses parent weights, current size, and growth patterns to estimate your mixed breed puppy's adult weight.
Try the Mixed Breed CalculatorFind your breed’s growth chart
Browse every breed in our calculator. Compare typical adult weight, age-by-age ranges, and growth milestones.
80 of 80 breeds
- Akita
- Alaskan Malamute
- Australian Cattle Dog
- Australian Shepherd
- Basenji
- Beagle
- Belgian Malinois
- Belgian Tervuren
- Bernedoodle
- Bernese Mountain Dog
- Bichon Frise
- Border Collie
- Border Terrier
- Boston Terrier
- Boxer
- Brussels Griffon
- Cane Corso
- Cavalier King Charles Spaniel
- Cavapoo
- Chihuahua
- Chow Chow
- Cockapoo
- Cocker Spaniel
- Collie
- Coton de Tulear
- Dalmatian
- Doberman Pinscher
- Dogo Argentino
- English Bulldog
- English Springer Spaniel
- French Bulldog
- German Shepherd
- German Shorthaired Pointer
- Golden Retriever
- Goldendoodle
- Great Dane
- Great Pyrenees
- Havanese
- Irish Wolfhound
- Italian Greyhound
- Japanese Chin
- Keeshond
- Labradoodle
- Labrador Retriever
- Leonberger
- Lhasa Apso
- Maltese
- Maltipoo
- Mastiff
- Miniature Dachshund
- Miniature Pinscher
- Miniature Poodle
- Miniature Schnauzer
- Newfoundland
- Norwegian Elkhound
- Old English Sheepdog
- Papillon
- Pekingese
- Pembroke Welsh Corgi
- Pomeranian
- Pug
- Rat Terrier
- Rhodesian Ridgeback
- Rottweiler
- Saint Bernard
- Samoyed
- Shetland Sheepdog
- Shiba Inu
- Shih Tzu
- Siberian Husky
- Standard Dachshund
- Standard Poodle
- Tibetan Mastiff
- Toy Fox Terrier
- Toy Poodle
- Vizsla
- Weimaraner
- Whippet
- Yorkipoo
- Yorkshire Terrier
Frequently asked questions
How accurate is the puppy weight calculator?
Our calculator provides estimated weight ranges based on breed data and growth curves. Individual puppies may vary based on genetics, nutrition, and health. Use the result as a helpful guide, not a guarantee.
At what age is a puppy fully grown?
Toy breeds (under 12 lb) typically finish growing around 9–10 months. Small to medium breeds reach adult weight by 12–15 months. Large and giant breeds may continue growing until 18–24 months.
How does the calculator work for mixed breed puppies?
For mixed breeds, you can enter parent weights for a better estimate or select an expected adult size category. The calculator uses size-based growth curves when breed-specific data isn't available.
Why does the calculator show a weight range instead of an exact number?
No prediction can be exact. Showing a range is more honest and accounts for natural variation in genetics, diet, exercise, and individual growth patterns.
Should I be concerned if my puppy is outside the estimated range?
Slight variations are normal. If your puppy is significantly above or below the range, or if their growth rate changes suddenly, consult your veterinarian. This calculator is not a substitute for professional advice.