Boxer Weight Chart by Age

An adult male Boxer weighs 65.0–80.0 lb (29.5–36.3 kg) and an adult female 50.0–65.0 lb (22.7–29.5 kg), according to the American Kennel Club breed standard.

At 3 months a typical male weighs 22.4 lb (10.2 kg) and a typical female 19.1 lb (8.7 kg). Half of males weigh 18.5–26.5 lb (8.4–12.0 kg), and half of females 15.4–23.1 lb (7.0–10.5 kg). A typical puppy is around 31% of its adult weight at this age.

At 4 months a typical male weighs 33.2 lb (15.0 kg) and a typical female 27.9 lb (12.6 kg). Half of males weigh 28.2–38.2 lb (12.8–17.3 kg), and half of females 23.1–32.9 lb (10.5–14.9 kg). A typical puppy is about 46% of the way to adult weight.

At 6 months a typical male weighs 50.9 lb (23.1 kg) and a typical female 41.7 lb (18.9 kg). Half of males weigh 43.9–58.0 lb (19.9–26.3 kg), and half of females 35.3–48.6 lb (16.0–22.1 kg).

At 12 months a typical male weighs 67.7 lb (30.7 kg) and a typical female 55.1 lb (25.0 kg). Half of males weigh 59.2–76.6 lb (26.8–34.8 kg), and half of females 46.9–63.6 lb (21.3–28.8 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 Boxer stays above 95% of adult weight from about 13 months, and the last 7% after its first birthday comes on slowly.

Yes, and by enough to matter. Adult males run 65.0–80.0 lb (29.5–36.3 kg) against 50.0–65.0 lb (22.7–29.5 kg) for females. Comparing a female against a chart that does not separate the sexes will usually make her look underweight when she is not.

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 Boxer weighs 29.5–36.3 kg for males and 22.7–29.5 kg for females under the American Kennel Club standard. A typical male weighs 10.2 kg at 3 months, 23.1 kg at 6 months and 30.7 kg at 12 months; a typical female 8.7 kg, 18.9 kg and 25.0 kg. The charts above give every month in kilograms, with a switch to pounds.

The American Kennel Club standard gives females 50.0–65.0 lb (22.7–29.5 kg). A typical female Boxer weighs 27.9 lb at 4 months, 41.7 lb at 6 months and 55.1 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 65.0–80.0 lb (29.5–36.3 kg). A typical male Boxer weighs 33.2 lb at 4 months, 50.9 lb at 6 months and 67.7 lb at 12 months. Weight stays above 95% of the adult figure from about 13 months. The male chart above gives every month.