How big does a Giant Schnauzer get?
A full-grown Giant Schnauzer is a large dog, weighing about 77–104 lb as an adult.
- Adult weight
- 77–104 lb
- Also in kilograms
- 35–47 kg
- Size class
- Large
As a large breed, a Giant Schnauzer 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.
Common questions
How much does a full-grown Giant Schnauzer weigh?
A Giant Schnauzer weighs 77–104 lb (35–47 kg) as an adult. That range is the mass Wikidata publishes for the breed under a CC0 licence, re-checked here every week — it is a typical range across many adult dogs, not a target for one dog.
Is a Giant Schnauzer a large dog?
Yes — a Giant Schnauzer counts as a large breed, going by the middle of its adult weight range (35–47 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 Giant Schnauzer stop growing?
Later than a small dog. Hawthorne et al. (2004) measured that larger breeds keep gaining weight for longer, so a Giant Schnauzer 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 a range instead of one weight?
Because the source publishes a range. Within any breed, weight varies with sex, genetics, build and health, and a mixed-breed dog usually falls between its parents' breeds. Narrowing 77–104 lb down to a single number would look more precise while being less true.
Breeds of a similar size
Weight varies within the Giant Schnauzer 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), Wikidata — cat breed mass (property P2067) (Wikimedia Foundation, query run 2026-07-28, CC0 license) and Body-Weight Changes during Growth in Puppies of Different Breeds (Hawthorne et al., Journal of Nutrition, 2004, vol. 134, p. 2027S). See the method.