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Rhodesian Ridgeback Weight Chart

Expected adult weight, growth by age and a calculator for your Rhodesian Ridgeback puppy. AKC weight: males 85 lb (39 kg), females 70 lb (32 kg).

Male, AKC
85 lb (39 kg)
Female, AKC
70 lb (32 kg)
Growth-chart size class
Large

Predict your Rhodesian Ridgeback puppy's adult weight

Sex
Pick the breed if you know it. For a mix, choose the size class that matches the parents, or leave it on 'not sure'.
12 weeks to 2 years

Enter your puppy's age and weight to see an estimate.

Not veterinary advice. PuppySizer gives estimates from published sources. It cannot examine your pet. For any health concern, ask your own veterinarian. Read the full disclaimer.

Rhodesian Ridgeback male growth chart

Rhodesian Ridgeback male growth curve. Typical male grows from 26.6 lb at 12 weeks to 85.0 lb at 2 years.0204060801003 mo6 mo1 yr18 mo2 yrlb
Typical male
Show the chart as a table
AgeTypical male (lb)
12 weeks26.6
16 weeks38.0
20 weeks48.9
26 weeks62.2
40 weeks78.8
52 weeks82.1
78 weeks83.2
104 weeks85.0

The curve ends at 85 lb (39 kg), the single weight AKC gives. On this curve a male reaches half of adult weight at about 18 weeks (4 months), 90 % at about 37 weeks (8 months) and 95 % at about 45 weeks (10 months).

Rhodesian Ridgeback female growth chart

Rhodesian Ridgeback female growth curve. Typical female grows from 21.3 lb at 12 weeks to 70.0 lb at 2 years.0204060803 mo6 mo1 yr18 mo2 yrlb
Typical female
Show the chart as a table
AgeTypical female (lb)
12 weeks21.3
16 weeks30.4
20 weeks39.2
26 weeks49.6
40 weeks61.5
52 weeks65.0
78 weeks67.8
104 weeks70.0

The curve ends at 70 lb (32 kg), the single weight AKC gives. On this curve a female reaches half of adult weight at about 18 weeks (4 months), 90 % at about 44 weeks (10 months) and 95 % at about 63 weeks (15 months).

Rhodesian Ridgeback weight by age

AgeMaleFemale
12 weeks (3 mo)27 lb / 12.1 kg21 lb / 9.7 kg
16 weeks (4 mo)38 lb / 17.2 kg30 lb / 13.8 kg
20 weeks (5 mo)49 lb / 22 kg39 lb / 17.8 kg
26 weeks (6 mo)62 lb / 28 kg50 lb / 22 kg
40 weeks (9 mo)79 lb / 36 kg61 lb / 28 kg
52 weeks (12 mo)82 lb / 37 kg65 lb / 29 kg
78 weeks (18 mo)83 lb / 38 kg68 lb / 31 kg
104 weeks (24 mo)85 lb / 39 kg70 lb / 32 kg

Typical healthy dog, from the shape of the Salt et al. (2017) chart for the large size class, scaled to the AKC weight. Healthy puppies vary around these values.

Rhodesian Ridgeback size questions

How big does a Rhodesian Ridgeback get?

The American Kennel Club gives 85 lb (39 kg) for males and 70 lb (32 kg) for females. Individual dogs can fall outside a breed range, and a mix or a dog from working lines may be larger or smaller.

When is a Rhodesian Ridgeback fully grown?

On this curve a male reaches half of adult weight at about 18 weeks (4 months), 90 % at about 37 weeks (8 months) and 95 % at about 45 weeks (10 months). On this curve a female reaches half of adult weight at about 18 weeks (4 months), 90 % at about 44 weeks (10 months) and 95 % at about 63 weeks (15 months). These ages come from the shape of the published growth chart for large dogs, scaled to the AKC weight, so they describe a typical dog, not a particular one.

How much should a Rhodesian Ridgeback puppy weigh at 6 months?

A typical male is about 62 lb (28 kg) and a female is about 50 lb (22 kg) at 26 weeks on this curve. The range for healthy puppies is wide, so use the calculator above with your own puppy’s weight.

Other breeds in the same size class

Sources

  1. AKC breed pages (weight line only). American Kennel Club. Read 2026-11-08. Used for: Breed weight ranges, as numbers only. No AKC text is reproduced.
  2. Growth standard charts for monitoring bodyweight in dogs of different sizes. Salt C, Morris PJ, Wilson D, Lund EM, German AJ. PLoS ONE 12(9): e0182064 (CC BY 4.0). Read 2026-11-08. Used for: Centile growth curves for five size classes (adult weight under 40 kg) from 12 weeks to 2 years, built from Banfield Pet Hospital records. We read the values off the published charts.

AKC weight read on 2026-11-08 from akc.org/dog-breeds/rhodesian-ridgeback (numbers only). Facts last checked November 8, 2026.