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Beagle growth chart
How much should a Beagle puppy weigh? Find the row that matches your puppy's size and expected adult weight, and read across by age.
Beagle puppy weight chart (lb)
| Adult weight | 2 mo | 3 mo | 4 mo | 5 mo | 6 mo | 8 mo | 10 mo | 12 mo |
|---|---|---|---|---|---|---|---|---|
| 13 in & under (maximum), 20 lb | 4.9 | 7.9 | 11 | 13 | 16 | 18 | 19 | 20 |
| 13–15 in, 20 lb | 3.8 | 6.7 | 9.4 | 12 | 14 | 17 | 18 | 19 |
| 13–15 in, 30 lb | 5.8 | 10 | 14 | 18 | 21 | 25 | 28 | 29 |
Beagle puppy weight chart (kg)
| Adult weight | 2 mo | 3 mo | 4 mo | 5 mo | 6 mo | 8 mo | 10 mo | 12 mo |
|---|---|---|---|---|---|---|---|---|
| 13 in & under (maximum), 9.1 kg | 2.2 | 3.6 | 4.9 | 6.1 | 7.1 | 8.2 | 8.7 | 9.0 |
| 13–15 in, 9.1 kg | 1.7 | 3.0 | 4.3 | 5.4 | 6.4 | 7.6 | 8.4 | 8.8 |
| 13–15 in, 14 kg | 2.6 | 4.5 | 6.4 | 8.1 | 9.5 | 11 | 13 | 13 |
Typical weights by month. Individual puppies often sit 10–15% above or below these numbers. Last reviewed October 7, 2026.
The AKC splits Beagles into two height varieties. For the smaller one it gives only a maximum weight (under 20 lb), so that row shows a puppy growing to 20 lb.
How big does a Beagle get?
According to the American Kennel Club's breed profile for the Beagle, adults weigh: 13 in & under under 20 lb; 13–15 in 20–30 lb. Life expectancy is 10–15 years.
| Weight | Height | |
|---|---|---|
| 13 in & under | under 20 lb | 13 in & under |
| 13–15 in | 20–30 lb | 13–15 in |
When does a Beagle stop growing?
How fast a Beagle matures depends on its size, because smaller dogs finish growing sooner. Typical ages for reaching close to adult weight: 13 in & under at around 11 months and 13–15 in at around 13 months.
To estimate your own puppy's adult weight from its current weight and age, use the puppy weight calculator.
How the chart is made
The adult weights come from the AKC breed profile. The weight at each month is estimated with our size-class growth curves (a separate curve for each size), which gives the share of adult weight a typical puppy of that size reaches at each age. The curves are simplified from published research on dog growth, including the growth standard charts by Salt and colleagues (PLOS ONE, 2017).
If your puppy is well below or above the chart, stops gaining weight, or looks very thin or round, ask your vet to check its body condition.
Questions people ask
How much should a 3-month-old Beagle weigh?
Typically about 6.7–10 lb, depending on sex and how big the dog will be as an adult.
How much should a 6-month-old Beagle weigh?
Typically about 14–21 lb.
When is a Beagle full grown?
It depends on size: smaller Beagles are close to adult weight at around 11 months, the biggest at around 13 months. Many keep filling out with muscle for a while after that.
How big will my Beagle get?
The AKC lists adult weights of 13 in & under under 20 lb; 13–15 in 20–30 lb. Your puppy's parents are a good guide to where in that range it will end up.