Staffordshire Bull Terrier Age in Human Years: Free Calculator

Work out your Staffordshire Bull Terrier age in human years. Staffordshire Bull Terriers typically weigh 24–38 lb and live 12–14 years; enter your dog's age below.

Size sets how fast a dog ages: bigger dogs age faster after year 2.
Human age (size-based chart)
47 years
Human age (UCSD research formula)62
Size classMedium
Life stageAdult

Both are estimates; no method is exact. The UCSD formula is based on Labrador Retrievers.

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A muscular, medium-sized terrier. Size class: Medium (20–50 lb (9–23 kg)). Senior from about 10 years.

Staffordshire Bull Terrier key numbers

Typical adult weight24–38 lb (10.9–17.2 kg)
Typical lifespan12–14 years
Fully grown (adult) from about1 year
Senior from about10 years (≈60 human years)
Human age at 14 years≈78
Daily calories, neutered adult671–947 kcal

Staffordshire Bull Terrier age in human years: year-by-year chart

Dog ageSize-based chartUCSD formulaLife stage
11531Adult
22442Adult
32849Adult
43253Adult
53657Adult
64260Adult
74762Adult
85164Adult
95666Adult
106068Senior
116569Senior
126971Senior
137472Senior
147873Senior
158374Senior
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Feeding a Staffordshire Bull Terrier

At a typical adult weight of 31 lb (14 kg), a neutered adult needs roughly 813 kcal a day. Use the dog food calculator for your dog's own weight and food.

Frequently asked questions

How old is a Staffordshire Bull Terrier in human years?

A Staffordshire Bull Terrier's age in human years depends on size. A Staffordshire Bull Terrier is a medium breed (24–38 lb), so on the size-based chart it is about 36 human years at 5 and 60 at 10. A typical Staffordshire Bull Terrier lifespan of 12–14 years is about 74 human years at the midpoint.

How long do Staffordshire Bull Terriers live?

Typically 12 to 14 years. A muscular, medium-sized terrier.

When is a Staffordshire Bull Terrier a senior?

From around 10 years old, which is the last quarter of a typical lifespan. Ask your vet about senior check-ups before then.

Other medium breeds

See all breeds · General dog age calculator

Sources

Last reviewed 2026-11-11. These are estimates for general information, not veterinary advice. See how we calculate.

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