Puppy Growth Chart
Expected puppy weight by age for six adult size classes, from 8 weeks to 2 years.
Quick answer
Small breeds grow fastest and are nearly adult by 9–12 months; giant breeds keep growing until about 2 years. At 16 weeks a toy puppy is roughly 58% of its adult weight, a large-breed puppy about 42%, and a giant puppy about 30%. For your puppy’s own estimate, use the puppy weight calculator.
Puppy weight chart by age (lb)
Each column uses an example adult weight in the middle of its size class. If your dog’s expected adult weight is different, use the percentage table below: multiply the adult weight by the percentage at your puppy’s age.
| Age | Toy (8 lb adult) | Small (18 lb adult) | Medium (28 lb adult) | Large (50 lb adult) | Extra large (75 lb adult) | Giant (130 lb adult) |
|---|---|---|---|---|---|---|
| 8 weeks (~2 mo) | 2.6 | 5.0 | 7 | 10 | 13 | 17 |
| 10 weeks (~2.5 mo) | 3.1 | 6.1 | 8 | 13 | 16 | 21 |
| 12 weeks (~3 mo) | 3.6 | 7.2 | 10 | 15 | 20 | 26 |
| 14 weeks (~3 mo) | 4.1 | 8.4 | 12 | 18 | 24 | 33 |
| 16 weeks (~3.5 mo) | 4.6 | 9.5 | 13 | 21 | 28 | 39 |
| 20 weeks (~4.5 mo) | 5.6 | 11.7 | 17 | 27 | 35 | 52 |
| 24 weeks (~5.5 mo) | 6.4 | 13.5 | 20 | 32 | 43 | 64 |
| 30 weeks (~7 mo) | 7.2 | 15.5 | 23 | 38 | 52 | 78 |
| 36 weeks (~8.5 mo) | 7.6 | 16.7 | 25 | 42 | 59 | 91 |
| 44 weeks (~10 mo) | 7.8 | 17.5 | 27 | 46 | 65 | 104 |
| 12 months | 8.0 | 18.0 | 27 | 48 | 69 | 113 |
| 15 months | 8.0 | 18.0 | 28 | 50 | 73 | 122 |
| 18 months | 8.0 | 18.0 | 28 | 50 | 75 | 127 |
| 24 months | 8.0 | 18.0 | 28 | 50 | 75 | 130 |
What percentage of adult weight is a puppy at each age?
| Age | Toy (under 14 lb) | Small (14–20 lb) | Medium (20–33 lb) | Large (33–66 lb) | Extra large (66–88 lb) | Giant (over 88 lb) |
|---|---|---|---|---|---|---|
| 8 weeks (~2 mo) | 32% | 28% | 24% | 20% | 17% | 13% |
| 10 weeks (~2.5 mo) | 39% | 34% | 30% | 25% | 22% | 17% |
| 12 weeks (~3 mo) | 45% | 40% | 35% | 30% | 26% | 20% |
| 14 weeks (~3 mo) | 52% | 47% | 42% | 36% | 32% | 25% |
| 16 weeks (~3.5 mo) | 58% | 53% | 48% | 42% | 37% | 30% |
| 20 weeks (~4.5 mo) | 70% | 65% | 60% | 53% | 47% | 40% |
| 24 weeks (~5.5 mo) | 80% | 75% | 70% | 63% | 57% | 49% |
| 30 weeks (~7 mo) | 90% | 86% | 82% | 75% | 69% | 60% |
| 36 weeks (~8.5 mo) | 95% | 93% | 90% | 84% | 79% | 70% |
| 44 weeks (~10 mo) | 98% | 97% | 95% | 91% | 87% | 80% |
| 12 months | 100% | 100% | 98% | 95% | 92% | 87% |
| 15 months | 100% | 100% | 100% | 99% | 97% | 94% |
| 18 months | 100% | 100% | 100% | 100% | 100% | 98% |
| 24 months | 100% | 100% | 100% | 100% | 100% | 100% |
When do puppies reach adult size?
- Toy (under 14 lb, e.g. Chihuahua, Yorkshire Terrier, Pomeranian): about 90% of adult weight by 7 months.
- Small (14–20 lb, e.g. Shih Tzu, Miniature Schnauzer, Dachshund): about 90% of adult weight by 8 months.
- Medium (20–33 lb, e.g. Beagle, Cocker Spaniel, Pug, Boston Terrier): about 90% of adult weight by 8 months.
- Large (33–66 lb, e.g. Australian Shepherd, Boxer, Siberian Husky): about 90% of adult weight by 10 months.
- Extra large (66–88 lb, e.g. Labrador, Golden Retriever, German Shepherd): about 90% of adult weight by 11 months.
- Giant (over 88 lb, e.g. Great Dane, Mastiff, Newfoundland): about 90% of adult weight by 13 months.
How was this puppy growth chart made?
Salt and colleagues (PLOS ONE, 2017) built growth standards from the vet records of healthy dogs that stayed in ideal body condition, much like the growth charts pediatricians use for children. They published curves for five size groups up to 40 kg (88 lb), and WALTHAM turned them into charts for vets. We read the middle (50th centile) line of each group, converted it to a share of adult weight, and rounded. For giant breeds over 88 lb we extended the pattern ourselves, because the published curves stop there. Treat the giant column as a rough guide.
How should I use a puppy growth chart?
Weigh your puppy every two to four weeks and track the trend. A healthy puppy usually follows a similar line over time. A puppy that climbs steeply across lines may be getting too many calories, which matters most for large breeds. A puppy that falls across lines may not be getting enough, or may be unwell. In both cases, talk to your vet. For feeding amounts at each age, use the puppy food calculator.
Frequently asked questions
How much should my puppy weigh at each age?
It depends on the adult size. Find the column closest to your dog’s expected adult weight and read down to your puppy’s age. For example, a puppy heading for 50 lb usually weighs about 21 lb at 16 weeks.
When do puppies stop growing?
Toy and small breeds are close to adult weight by about 9–12 months. Medium breeds finish around 12–15 months, large breeds around 15–18 months, and giant breeds can keep filling out until about 2 years.
My puppy doesn’t match the chart. Is that a problem?
Not usually. The chart shows the middle of the range; healthy puppies can track above or below it. What matters is steady growth along a similar line and a good body condition. Ask your vet if your puppy suddenly crosses lines up or down.
Where do these numbers come from?
From growth standards published by Salt and colleagues in PLOS ONE (2017), based on healthy dogs in ideal body condition at US vet clinics. We turned the middle lines into shares of adult weight and multiplied by an example adult weight. The giant column is our own estimate, as the published curves stop at 88 lb.
Sources
- Salt C, Morris PJ, German AJ, et al. Growth standard charts for monitoring bodyweight in dogs of different sizes. PLOS ONE 2017;12(9):e0182064. journals.plos.org
- WALTHAM Puppy Growth Charts: complete guide. waltham.com
- Salt C, et al. Comparison of growth patterns in healthy dogs and dogs in abnormal body condition using growth standards. PLOS ONE 2020;15(9):e0238521. journals.plos.org
Vet disclaimer: These are estimates for healthy pets. Your vet knows your pet. Ask them before changing diet or care, especially for puppies, kittens, seniors, pregnant pets or pets with health conditions. Read our medical disclaimer.