Bernese Mountain Dog weight predictor
AKC: males 80–115 lb, females 70–95 lb. Big and slow-maturing — let them grow gradually.
Typical adult: 70–115 lb · grown by ~22 months
Predicted adult weight
Fully grown—
likely —
Enter your puppy’s weight and age.
That doesn’t look right
Your puppy’s growth curve
Estimated weight as they grow up — the dot is where they are now.
| Age | Est. weight |
|---|
Good to know
General guidance only — an estimate, not veterinary advice. Always check with your vet about your pet’s growth, weight and diet.
How this was calculated
For a Bernese Mountain Dog we use the giant-breed growth curve (matures around 22 months): adult weight ≈ current weight ÷ the fraction of adult weight a giant breed reaches at this age. Typical adult weight (70–115 lb) is from the AKC breed standard. The gauge shows where your prediction lands against the breed-typical adult range.
Source: AKC breed standard + WALTHAM growth charts. Full method on our methodology page.
Built by the PawGauge team, reviewed against cited veterinary sources. Last reviewed 29 June 2026.
About our figures →Bernese Mountain Dog growth chart
Typical Bernese Mountain Dog weight from 8 weeks to fully grown, for males and females. A healthy Bernese Mountain Dog tracks near these figures — individuals sit up to ~10–15% either side.
| Age | Male | Female |
|---|---|---|
| 8 weeks | 17.3 lb (7.8 kg) | 14.6 lb (6.6 kg) |
| 3 months | 27.9 lb (13 kg) | 23.6 lb (11 kg) |
| 4 months | 37.8 lb (17 kg) | 32 lb (15 kg) |
| 5 months | 45.4 lb (21 kg) | 38.4 lb (17 kg) |
| 6 months | 52.1 lb (24 kg) | 44.1 lb (20 kg) |
| 7 months | 59 lb (27 kg) | 49.9 lb (23 kg) |
| 8 months | 64.1 lb (29 kg) | 54.2 lb (25 kg) |
| 9 months | 69.2 lb (31 kg) | 58.5 lb (27 kg) |
| 10 months | 73.6 lb (33 kg) | 62.2 lb (28 kg) |
| 12 months | 82 lb (37 kg) | 69.4 lb (31 kg) |
| 14 months | 85.9 lb (39 kg) | 72.7 lb (33 kg) |
| 16 months | 89.8 lb (41 kg) | 76 lb (34 kg) |
| 18 months | 93.6 lb (42 kg) | 79.2 lb (36 kg) |
| 21 months | 96.5 lb (44 kg) | 81.6 lb (37 kg) |
| Adult (~22 mo) | 80–115 lb (36–52 kg) | 70–95 lb (32–43 kg) |
Bernese Mountain Dog growth, explained
Bernese Mountain Dogs are a giant breed, so they follow the giant-breed growth curve. AKC: males 80–115 lb, females 70–95 lb. Big and slow-maturing — let them grow gradually. Most reach close to their adult weight by around 22 months, then continue to firm up in muscle and chest for a while after.
To predict an adult weight we divide your puppy’s current weight by the fraction of adult weight a giant breed has typically reached at that age. Typical adult weight (70–115 lb) is from the AKC breed standard. The result is an estimate with a likely range — genetics and nutrition move individual dogs up or down. If your Bernese Mountain Dog looks heavier or lighter than the breed-typical band, your vet is the best person to check.
Bernese Mountain Dog weight questions
- How big do Bernese Mountain Dogs get?
- A typical adult Bernese Mountain Dog weighs about 70–115 lb. AKC: males 80–115 lb, females 70–95 lb. Big and slow-maturing — let them grow gradually.
- What should a Bernese Mountain Dog weigh by age?
- See the Bernese Mountain Dog growth chart above for weight at 8 weeks through to adult. As a guide, a giant-breed puppy is roughly half its adult weight by about 6 months.
- Do male and female Bernese Mountain Dogs weigh differently?
- Yes — male Bernese Mountain Dogs run about 80–115 lb and females about 70–95 lb, so the growth chart above shows a separate line for each. Individuals overlap.
- When is a Bernese Mountain Dog fully grown?
- Bernese Mountain Dogs are a giant breed and usually finish growing around 22 months, though they may keep filling out a little after that.
- How accurate is this for a Bernese Mountain Dog?
- Within about 10–15% if your puppy is a typical Bernese Mountain Dog. Crossbreeds, runts and big-boned individuals vary more. It’s an estimate — your vet can assess your individual dog.
