Fila Brasileiro Weight & Size
How big does a Fila Brasileiro get?
A full-grown Fila Brasileiro is a large dog, weighing about 88 lb as an adult.
- Adult weight
- 88 lb
- Also in kilograms
- 40 kg
- Size class
- Large
Fila Brasileiro Size
As a large breed, a Fila Brasileiro keeps growing for longer than a small dog — larger breeds reach their adult weight months later (Hawthorne et al., 2004). Expect steady growth well past the first year.
Fila Brasileiro Growth Chart
What a Fila Brasileiro puppy weighs week by week, from the growth curve FEDIAF publishes (Nutritional Guidelines 2025, Table VII-8a) for a dog whose expected adult weight is 40.0 kg. It is an average, not a target, and it is only valid from 8 weeks to one year — FEDIAF notes that growth patterns show a certain individual variability. Read a row as the middle of a spread.
| Age | Weight | % of adult weight |
|---|---|---|
| 8 weeks | 18 lb (8.3 kg) | 21% |
| 10 weeks | 26 lb (11.6 kg) | 29% |
| 12 weeks | 31 lb (14.3 kg) | 36% |
| 14 weeks | 36 lb (16.5 kg) | 41% |
| 16 weeks | 41 lb (18.5 kg) | 46% |
| 18 weeks | 45 lb (20.3 kg) | 51% |
| 20 weeks | 48 lb (21.8 kg) | 55% |
| 24 weeks | 54 lb (24.5 kg) | 61% |
| 28 weeks | 59 lb (26.8 kg) | 67% |
| 32 weeks | 63 lb (28.8 kg) | 72% |
| 36 weeks | 67 lb (30.5 kg) | 76% |
| 40 weeks | 71 lb (32.1 kg) | 80% |
| 44 weeks | 74 lb (33.5 kg) | 84% |
| 48 weeks | 77 lb (34.8 kg) | 87% |
| 52 weeks | 79 lb (35.9 kg) | 90% |
Common questions
How much does a full-grown Fila Brasileiro weigh?
A Fila Brasileiro weighs about 88 lb (40 kg) as an adult. That figure is the mass Wikidata publishes for the breed under a CC0 license, re-checked here every week — it is a typical weight across many adult dogs, not a target for one dog.
Is a Fila Brasileiro a large dog?
Yes — a Fila Brasileiro counts as a large breed, going by its published adult weight (40 kg). The cut-offs between small, medium, large and giant are a common veterinary convention rather than one official standard, so a breed near a boundary can be described either way elsewhere.
When does a Fila Brasileiro stop growing?
Later than a small dog. Hawthorne et al. (2004) measured that larger breeds keep gaining weight for longer, so a Fila Brasileiro is likely to fill out well past its first birthday. We don't publish a month-by-month figure, because no source gives one breed by breed — and an invented number would be worse than none.
Why is there one weight instead of a range?
Because that is what the source publishes for this breed — a single adult mass, not a span. Real Fila Brasileiros still vary with sex, genetics, build and health, so read about 88 lb as the middle of a spread this source does not put numbers on. We don't invent the edges.
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Weight varies within the Fila Brasileiro by sex, genetics and health, and mixed-breed dogs fall between their parents. This is a typical range, not a guarantee.
Verified on . Based on Wikidata — dog breed mass (property P2067) (Wikimedia Foundation, query run 2026-07-22, CC0 license), Body-Weight Changes during Growth in Puppies of Different Breeds (Hawthorne et al., Journal of Nutrition, 2004, vol. 134, p. 2027S) and Nutritional Guidelines for Complete and Complementary Pet Food for Cats and Dogs (FEDIAF (European Pet Food Industry Federation), 2025 edition (growth curves Table VII-8a, growth energy VII-8b and VII-10)). See the method.