Boxer Age in Human Years: Free Calculator
Work out your Boxer age in human years. Boxers typically weigh 50–80 lb and live 10–12 years; enter your dog's age below.
A strong, athletic breed. Size class: Large (51–100 lb (23–45 kg)). Senior from about 8.5 years.
Boxer key numbers
| Typical adult weight | 50–80 lb (22.7–36.3 kg) |
| Typical lifespan | 10–12 years |
| Fully grown (adult) from about | 1.5 years |
| Senior from about | 8.5 years (≈58 human years) |
| Human age at 12 years | ≈77 |
| Daily calories, neutered adult | 1164–1656 kcal |
Boxer age in human years: year-by-year chart
| Dog age | Size-based chart | UCSD formula | Life stage |
|---|---|---|---|
| 1 | 15 | 31 | Puppy |
| 2 | 24 | 42 | Adult |
| 3 | 28 | 49 | Adult |
| 4 | 32 | 53 | Adult |
| 5 | 36 | 57 | Adult |
| 6 | 45 | 60 | Adult |
| 7 | 50 | 62 | Adult |
| 8 | 55 | 64 | Adult |
| 9 | 61 | 66 | Senior |
| 10 | 66 | 68 | Senior |
| 11 | 72 | 69 | Senior |
| 12 | 77 | 71 | Senior |
| 13 | 82 | 72 | Senior |
Feeding a Boxer
At a typical adult weight of 65 lb (29 kg), a neutered adult needs roughly 1417 kcal a day. Use the dog food calculator for your dog's own weight and food.
Frequently asked questions
How old is a Boxer in human years?
A Boxer's age in human years depends on size. A Boxer is a large breed (50–80 lb), so on the size-based chart it is about 36 human years at 5 and 66 at 10. A typical Boxer lifespan of 10–12 years is about 72 human years at the midpoint.
How long do Boxers live?
Typically 10 to 12 years. A strong, athletic breed.
When is a Boxer a senior?
From around 8.5 years old, which is the last quarter of a typical lifespan. Ask your vet about senior check-ups before then.
Other large breeds
See all breeds · General dog age calculator