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Bernese Mountain Dog Weight Chart

Expected adult weight, growth by age and a calculator for your Bernese Mountain Dog puppy. AKC weight: males 80 to 115 lb (36 to 52 kg), females 70 to 95 lb (32 to 43 kg).

Male, AKC
80 to 115 lb (36 to 52 kg)
Female, AKC
70 to 95 lb (32 to 43 kg)
Growth-chart size class
Large

Predict your Bernese Mountain Dog puppy's adult weight

Sex
Pick the breed if you know it. For a mix, choose the size class that matches the parents, or leave it on 'not sure'.
12 weeks to 2 years

Enter your puppy's age and weight to see an estimate.

Not veterinary advice. PuppySizer gives estimates from published sources. It cannot examine your pet. For any health concern, ask your own veterinarian. Read the full disclaimer.

Bernese Mountain Dog male growth chart

Bernese Mountain Dog male growth curve. Typical male grows from 33.1 lb at 12 weeks to 97.5 lb at 2 years.0204060801003 mo6 mo1 yr18 mo2 yrlb
Typical maleLower end of AKC range
Show the chart as a table
AgeTypical male (lb)Lower end of AKC range (lb)
12 weeks33.123.7
16 weeks46.134.4
20 weeks58.444.7
26 weeks73.257.3
40 weeks91.473.3
52 weeks94.776.7
78 weeks95.778.1
104 weeks97.580.0

The curve ends at 98 lb (44 kg), the middle of the AKC range. On this curve a male reaches half of adult weight at about 17 weeks (4 months), 90 % at about 35 weeks (8 months) and 95 % at about 43 weeks (10 months).

Bernese Mountain Dog female growth chart

Bernese Mountain Dog female growth curve. Typical female grows from 28.1 lb at 12 weeks to 82.5 lb at 2 years.0204060801003 mo6 mo1 yr18 mo2 yrlb
Typical femaleLower end of AKC range
Show the chart as a table
AgeTypical female (lb)Lower end of AKC range (lb)
12 weeks28.121.3
16 weeks38.930.4
20 weeks49.139.2
26 weeks60.949.6
40 weeks74.061.5
52 weeks77.665.0
78 weeks80.367.8
104 weeks82.570.0

The curve ends at 83 lb (37 kg), the middle of the AKC range. On this curve a female reaches half of adult weight at about 17 weeks (4 months), 90 % at about 41 weeks (9 months) and 95 % at about 57 weeks (13 months).

Bernese Mountain Dog weight by age

AgeMaleFemale
12 weeks (3 mo)33 lb / 15.0 kg28 lb / 12.8 kg
16 weeks (4 mo)46 lb / 21 kg39 lb / 17.6 kg
20 weeks (5 mo)58 lb / 26 kg49 lb / 22 kg
26 weeks (6 mo)73 lb / 33 kg61 lb / 28 kg
40 weeks (9 mo)91 lb / 41 kg74 lb / 34 kg
52 weeks (12 mo)95 lb / 43 kg78 lb / 35 kg
78 weeks (18 mo)96 lb / 43 kg80 lb / 36 kg
104 weeks (24 mo)98 lb / 44 kg83 lb / 37 kg

Typical healthy dog, from the shape of the Salt et al. (2017) chart for the large size class, scaled to the AKC weight. Healthy puppies vary around these values.

Bernese Mountain Dog size questions

How big does a Bernese Mountain Dog get?

The American Kennel Club gives 80 to 115 lb (36 to 52 kg) for males and 70 to 95 lb (32 to 43 kg) for females. Individual dogs can fall outside a breed range, and a mix or a dog from working lines may be larger or smaller.

When is a Bernese Mountain Dog fully grown?

On this curve a male reaches half of adult weight at about 17 weeks (4 months), 90 % at about 35 weeks (8 months) and 95 % at about 43 weeks (10 months). On this curve a female reaches half of adult weight at about 17 weeks (4 months), 90 % at about 41 weeks (9 months) and 95 % at about 57 weeks (13 months). These ages come from the shape of the published growth chart for large dogs, scaled to the AKC weight, so they describe a typical dog, not a particular one.

How much should a Bernese Mountain Dog puppy weigh at 6 months?

A typical male is about 73 lb (33 kg) and a female is about 61 lb (28 kg) at 26 weeks on this curve. The range for healthy puppies is wide, so use the calculator above with your own puppy’s weight.

Other breeds in the same size class

Sources

  1. AKC breed pages (weight line only). American Kennel Club. Read 2026-11-08. Used for: Breed weight ranges, as numbers only. No AKC text is reproduced.
  2. Growth standard charts for monitoring bodyweight in dogs of different sizes. Salt C, Morris PJ, Wilson D, Lund EM, German AJ. PLoS ONE 12(9): e0182064 (CC BY 4.0). Read 2026-11-08. Used for: Centile growth curves for five size classes (adult weight under 40 kg) from 12 weeks to 2 years, built from Banfield Pet Hospital records. We read the values off the published charts.

AKC weight read on 2026-11-08 from akc.org/dog-breeds/bernese-mountain-dog (numbers only). Facts last checked November 8, 2026.