How Big Will My Black Russian Terrier Get?

Black Russian Terriers are a giant breed that typically weigh 3668 kg (79150 lbs) at full size. Giant breeds are the slowest to mature, often not reaching their full adult weight until 18–24 months.

Black Russian Terrier Size at a Glance

Adult Weight

3668 kg

79150 lbs

Adult Height

6476 cm

2530 in

Size Category

giant

Fully Grown By

18–24 mo

Black Russian Terrier Growth Chart

Black Russian Terrier Weight by Age

8 weeks
17%
6.1–11.6 kg
1326 lbs
12 weeks
25%
9–17 kg
2037 lbs
4 months
33%
11.9–22.4 kg
2649 lbs
6 months
50%
18–34 kg
4075 lbs
9 months
67%
24.1–45.6 kg
53101 lbs
12 months
80%
28.8–54.4 kg
63120 lbs
18 months
95%
34.1–64.4 kg
75142 lbs

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Black Russian Terrier 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 Black Russian Terrier's growth rate is fastest in the first 6 months of life. For larger breeds like the Black Russian Terrier, 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 Black Russian Terrier'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 Black Russian Terrier puppy get?

A full-grown Black Russian Terrier typically weighs between 36–68 kg (79–150 lbs). Males tend to be on the larger end of the range while females are usually smaller.

When do Black Russian Terriers 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 Black Russian Terrier puppy weigh at 12 weeks?

At 12 weeks, a Black Russian Terrier puppy typically weighs around 15.6–20.8 kg (34–46 lbs), which is roughly 30–40% of their adult weight.

How can I tell if my Black Russian Terrier puppy is the right weight?

Compare your puppy's weight to the growth chart above. A healthy Black Russian Terrier puppy should follow a steady growth curve. If your puppy's weight deviates significantly from the expected range, consult your veterinarian.

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