Boxer weight predictor
AKC: males 65–80 lb, females 50–65 lb. Athletic and lean — Boxers finish close to adult size around 16 months, then muscle up.
Typical adult: 50–80 lb · grown by ~16 months
Predicted adult weight
Fully grown—
likely —
Enter your puppy’s weight and age.
That doesn’t look right
Your puppy’s growth curve
Estimated weight as they grow up — the dot is where they are now.
| Age | Est. weight |
|---|
Good to know
General guidance only — an estimate, not veterinary advice. Always check with your vet about your pet’s growth, weight and diet.
How this was calculated
For a Boxer we use the large-breed growth curve (matures around 16 months): adult weight ≈ current weight ÷ the fraction of adult weight a large breed reaches at this age. Typical adult weight (50–80 lb) is from the AKC breed standard. The gauge shows where your prediction lands against the breed-typical adult range.
Source: AKC breed standard + WALTHAM growth charts. Full method on our methodology page.
Built by the PawGauge team, reviewed against cited veterinary sources. Last reviewed 29 June 2026.
About our figures →Boxer growth chart
Typical Boxer weight from 8 weeks to fully grown, for males and females. A healthy Boxer tracks near these figures — individuals sit up to ~10–15% either side.
| Age | Male | Female |
|---|---|---|
| 8 weeks | 16 lb (7.3 kg) | 12.7 lb (5.8 kg) |
| 3 months | 25.1 lb (11 kg) | 19.9 lb (9.0 kg) |
| 4 months | 32.5 lb (15 kg) | 25.7 lb (12 kg) |
| 5 months | 38.8 lb (18 kg) | 30.7 lb (14 kg) |
| 6 months | 45 lb (20 kg) | 35.7 lb (16 kg) |
| 7 months | 50.1 lb (23 kg) | 39.7 lb (18 kg) |
| 8 months | 55.1 lb (25 kg) | 43.7 lb (20 kg) |
| 9 months | 58.5 lb (27 kg) | 46.4 lb (21 kg) |
| 10 months | 61.3 lb (28 kg) | 48.6 lb (22 kg) |
| 12 months | 66.7 lb (30 kg) | 52.9 lb (24 kg) |
| 14 months | 69.5 lb (32 kg) | 55.2 lb (25 kg) |
| Adult (~16 mo) | 65–80 lb (29–36 kg) | 50–65 lb (23–29 kg) |
Boxer growth, explained
Boxers are a large breed, so they follow the large-breed growth curve. AKC: males 65–80 lb, females 50–65 lb. Athletic and lean — Boxers finish close to adult size around 16 months, then muscle up. Most reach close to their adult weight by around 16 months, then continue to firm up in muscle and chest for a while after.
To predict an adult weight we divide your puppy’s current weight by the fraction of adult weight a large breed has typically reached at that age. Typical adult weight (50–80 lb) is from the AKC breed standard. The result is an estimate with a likely range — genetics and nutrition move individual dogs up or down. If your Boxer looks heavier or lighter than the breed-typical band, your vet is the best person to check.
Boxer weight questions
- How big do Boxers get?
- A typical adult Boxer weighs about 50–80 lb. AKC: males 65–80 lb, females 50–65 lb. Athletic and lean — Boxers finish close to adult size around 16 months, then muscle up.
- What should a Boxer weigh by age?
- See the Boxer growth chart above for weight at 8 weeks through to adult. As a guide, a large-breed puppy is roughly half its adult weight by about 5 months.
- Do male and female Boxers weigh differently?
- Yes — male Boxers run about 65–80 lb and females about 50–65 lb, so the growth chart above shows a separate line for each. Individuals overlap.
- When is a Boxer fully grown?
- Boxers are a large breed and usually finish growing around 16 months, though they may keep filling out a little after that.
- How accurate is this for a Boxer?
- Within about 10–15% if your puppy is a typical Boxer. Crossbreeds, runts and big-boned individuals vary more. It’s an estimate — your vet can assess your individual dog.
