How Big Will My Giant Schnauzer Get?
Giant Schnauzers are a giant breed that typically weigh 34–45 kg (75–99 lbs) at full size. Giant breeds are the slowest to mature, often not reaching their full adult weight until 18–24 months.
Giant Schnauzer Size at a Glance
Adult Weight
34–45 kg
75–99 lbs
Adult Height
60–70 cm
24–28 in
Size Category
giant
Fully Grown By
18–24 mo
Giant Schnauzer Growth Chart
Giant Schnauzer Weight by Age
Predict Your Giant Schnauzer Puppy's Adult Weight
Enter your puppy's current age and weight for a personalized prediction.
Open Weight CalculatorGiant Schnauzer Growth & Development
Giant breeds are the slowest to mature, often not reaching their full adult weight until 18–24 months. They have an extended growth period that requires careful nutrition management.
A Giant Schnauzer's growth rate is fastest in the first 6 months of life. For larger breeds like the Giant Schnauzer, it's important not to over-feed during the growth phase, as rapid weight gain can put stress on developing joints and bones.
Factors that influence your Giant Schnauzer's adult size include genetics (parent size), nutrition quality, spay/neuter timing, and overall health. Males typically weigh 10–20% more than females.
Frequently Asked Questions
How big will my Giant Schnauzer puppy get?
A full-grown Giant Schnauzer typically weighs between 34–45 kg (75–99 lbs). Males tend to be on the larger end of the range while females are usually smaller.
When do Giant Schnauzers stop growing?
Giant breeds are the slowest to mature, often not reaching their full adult weight until 18–24 months. They have an extended growth period that requires careful nutrition management. Individual dogs may reach their full size slightly earlier or later depending on genetics, diet, and overall health.
How much should a Giant Schnauzer puppy weigh at 12 weeks?
At 12 weeks, a Giant Schnauzer puppy typically weighs around 11.9–15.8 kg (26–35 lbs), which is roughly 30–40% of their adult weight.
How can I tell if my Giant Schnauzer puppy is the right weight?
Compare your puppy's weight to the growth chart above. A healthy Giant Schnauzer puppy should follow a steady growth curve. If your puppy's weight deviates significantly from the expected range, consult your veterinarian.
Learn More About Giant Schnauzers
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