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Bernese Mountain Dog Puppy Growth Chart & Weight Calculator

How much should a Bernese Mountain Dog puppy weigh? Adult Bernese Mountain Dogs typically weigh 70-115 lb (32-52 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

Bernese Mountain Dog weight chart by age

AgeExpected weight (lb)Expected weight (kg)% of adult weight
2 months11-17 lb5-8 kg15%
3 months18-29 lb8-13 kg25%
4 months25-40 lb11-18 kg35%
5 months32-52 lb14-23 kg45%
6 months39-63 lb17-29 kg55%
7 months43-71 lb20-32 kg62%
8 months48-78 lb22-35 kg68%
9 months51-84 lb23-38 kg73%
10 months54-89 lb24-40 kg77%
12 months60-98 lb27-44 kg85%
14 months63-104 lb29-47 kg90%
16 months66-108 lb30-49 kg94%
18 months68-112 lb31-51 kg97%
24 months70-115 lb32-52 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 Bernese Mountain Dog get?

Free · instant · based on veterinary formulas

8 to 104 weeks
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When do Bernese Mountain Dogs stop growing?

As a giant breed, Bernese Mountain Dogs usually reach their adult weight at around 18-24 months, and are typically about half their adult weight by around 6 months. They may keep filling out (gaining muscle and chest depth) for a few months after their height stops increasing.

Feeding a growing Bernese Mountain Dog

  • Feed a complete puppy food formulated for large-breed puppies, which controls calcium and calories to support healthy bone growth.
  • 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 Bernese Mountain Dog 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 Bernese Mountain Dog get?

Most adult Bernese Mountain Dogs weigh 70-115 lb. Enter your puppy's weight and age in the calculator above for a personalized estimate.

How much should a 6-month-old Bernese Mountain Dog weigh?

Typically about 39-63 lb, depending on sex and genetics.

At what age is a Bernese Mountain Dog full grown?

Usually around 18-24 months.

Bernese Mountain Dog at a glance

Adult weight: 70-115 lb
Size: giant
Full grown: 18-24 months

Puppy weight calculator →