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Beagle Puppy Growth Chart & Weight Calculator

How much should a Beagle puppy weigh? Adult Beagles typically weigh 20-30 lb (9-14 kg). Use the month-by-month chart below or enter your puppy's weight to predict adult size.

Updated 2026-10-10 · Adult range based on typical breed standards

Beagle weight chart by age

AgeExpected weight (lb)Expected weight (kg)% of adult weight
2 months6-8 lb3-4 kg28%
3 months8-13 lb4-6 kg42%
4 months11-17 lb5-8 kg56%
5 months14-20 lb6-9 kg68%
6 months16-23 lb7-11 kg78%
7 months17-26 lb8-12 kg85%
8 months18-27 lb8-12 kg90%
9 months19-28 lb9-13 kg94%
10 months19-29 lb9-13 kg97%
12 months20-30 lb9-14 kg100%
14 months20-30 lb9-14 kg100%
16 months20-30 lb9-14 kg100%

Ranges span typical females (lower end) to males (upper end). Individual puppies vary; your vet's body condition assessment matters more than hitting an exact number.

How big will my Beagle get?

Free · instant · based on veterinary formulas

8 to 104 weeks
Your data stays in your browser

When do Beagles stop growing?

As a small breed, Beagles usually reach their adult weight at around 10-12 months, and are typically about half their adult weight by around 4 months. They may keep filling out (gaining muscle and chest depth) for a few months after their height stops increasing.

Feeding a growing Beagle

  • Feed a complete puppy food.
  • Split food into 3-4 meals a day until about 6 months, then 2 meals.
  • Keep your puppy lean. You should be able to feel the ribs easily. Use the dog food calculator (puppy setting) as a starting point.
  • Weigh your puppy every 1-2 weeks and compare with the chart above.

Is my Beagle puppy overweight or underweight?

A puppy slightly outside the chart range is usually fine if it is active, eating well and has a good body shape. Talk to your vet if your puppy is far outside the range, stops gaining weight, or looks pot-bellied or bony. Parents' size is a strong clue: puppies from smaller parents often finish at the lower end.

Other breed growth charts

Frequently asked questions

How big will my Beagle get?

Most adult Beagles weigh 20-30 lb. Enter your puppy's weight and age in the calculator above for a personalized estimate.

How much should a 6-month-old Beagle weigh?

Typically about 16-23 lb, depending on sex and genetics.

At what age is a Beagle full grown?

Usually around 10-12 months.

Beagle at a glance

Adult weight: 20-30 lb
Size: small
Full grown: 10-12 months

Puppy weight calculator →