Rhodesian Ridgeback Weight Chart by Age

An adult male Rhodesian Ridgeback weighs about 85 lb (38.6 kg) and an adult female about 70 lb (31.8 kg), according to the American Kennel Club breed standard.

At 3 months a typical male weighs 27.4 lb (12.4 kg) and a typical female 23.7 lb (10.8 kg). Half of males weigh 21.7–33.6 lb (9.9–15.2 kg), and half of females 18.8–29.1 lb (8.5–13.2 kg). A typical puppy is around 31% of its adult weight at this age.

At 4 months a typical male weighs 40.5 lb (18.4 kg) and a typical female 34.5 lb (15.7 kg). Half of males weigh 33.0–48.5 lb (15.0–22.0 kg), and half of females 28.1–41.5 lb (12.8–18.8 kg). A typical puppy is about 46% of the way to adult weight.

At 6 months a typical male weighs 62.2 lb (28.2 kg) and a typical female 51.7 lb (23.5 kg). Half of males weigh 51.4–73.6 lb (23.3–33.4 kg), and half of females 42.9–61.3 lb (19.5–27.8 kg).

At 12 months a typical male weighs 82.7 lb (37.5 kg) and a typical female 68.3 lb (31.0 kg). Half of males weigh 69.4–97.3 lb (31.5–44.1 kg), and half of females 57.1–80.2 lb (25.9–36.4 kg). That is about 93% of final weight, with the rest filling in over the following months.

Dogs of this size that were weighed both as puppies and as adults ended up at about 2.3 times their 4-month weight, in records from US veterinary clinics. The calculator on the home page uses those records for the puppy’s own age and weight, and returns a range rather than one number.

Height is usually settled first; weight keeps filling in for longer. On the growth curve for its size, a Rhodesian Ridgeback stays above 95% of adult weight from about 13 months, and the last 7% after its first birthday comes on slowly.

Yes. The standard sets a desirable weight of 85 lb for males and 70 lb for females, and measured Swedish young adults show a similar gap: 41.9 kg for males and 34.8 kg for females (Andersson et al. 2023). Use the chart for your dog’s sex.

A large breed, defined by adult weight. That classification determines the growth curve used here: veterinary research shows dogs of similar adult size grow at similar rates regardless of breed.

Not necessarily: 1 in 10 healthy puppies weighs less than the lightest figure in the table. What matters more is the trend. A puppy that drifts from one part of the range to a lower one is worth checking: look at its body condition and ask your vet about its diet. A single low reading is not a diagnosis.

Body condition tells you more than the scale. You should be able to feel the ribs under a thin layer of fat without pressing, see a waist from above, and see the belly tuck up from the side. A dog can sit inside the weight range and still carry too much fat.

Most published charts come from one breeder’s litters or from unsourced rules of thumb, and many do not say whether the figures are for males, females or both. The ranges here come from centile curves fitted to millions of veterinary bodyweight records, scaled to the AKC adult range, and split by sex.

The research behind these curves found neutering shifted growth trajectory only slightly, by less than the variation between individual dogs, so separate curves were not needed. Neutering is associated with a higher chance of becoming overweight in adulthood, which is a body condition question rather than a growth chart one.

An adult Rhodesian Ridgeback weighs 38.6 kg for males and 31.8 kg for females under the American Kennel Club standard. A typical male weighs 12.4 kg at 3 months, 28.2 kg at 6 months and 37.5 kg at 12 months; a typical female 10.8 kg, 23.5 kg and 31.0 kg. The charts above give every month in kilograms, with a switch to pounds.

The American Kennel Club standard gives females about 70 lb (31.8 kg). A typical female Rhodesian Ridgeback weighs 34.5 lb at 4 months, 51.7 lb at 6 months and 68.3 lb at 12 months. Weight stays above 95% of the adult figure from about 13 months. The female chart above gives every month.

The American Kennel Club standard gives males about 85 lb (38.6 kg). A typical male Rhodesian Ridgeback weighs 40.5 lb at 4 months, 62.2 lb at 6 months and 82.7 lb at 12 months. Weight stays above 95% of the adult figure from about 13 months. The male chart above gives every month.