Shiba Inu vs Akita: Size & Growth Compared
Updated October 2026
Shiba Inus and Akitas share the classic Japanese spitz look — curled tails, erect ears, fox-like faces — but they live in entirely different size classes. Shibas are small dogs at 17–25 lb; Akitas are large-to-giant at 70–130 lb. The resemblance confuses newcomers, but a Shiba puppy and an Akita puppy are on completely different growth charts with different timelines: about 11 months vs 18 months to maturity.
Side-by-side comparison
Key differences
- Adult weight: Shibas 17–25 lb vs Akitas 70–130 lb — the Akita can be five times heavier.
- Growth timeline: Shibas mature around 11 months; Akitas around 18 months.
- Puppy phase: Akita puppies gain dramatically more per week — never judge one against the other’s chart.
- Space and cost: an Akita needs the crate, food budget, and exercise plan of a giant breed; a Shiba needs a small-breed setup.
- Look-alike warning: if your “Shiba” puppy is past 30 lb at 6 months, double-check the breed.
Frequently asked questions
Is an Akita just a big Shiba Inu?
They look related — both are Japanese spitz breeds — but they are distinct breeds in totally different size classes: 17–25 lb vs 70–130 lb. Temperament and care needs differ just as much.
How big will my Shiba Inu get compared to an Akita?
A Shiba typically reaches 17–25 lb, about the size of an Akita’s head and shoulders. If you expected Akita size from a Shiba-labeled puppy, verify the breed with your vet.
Do Shibas and Akitas grow at the same speed?
No. Shibas finish around 11 months on a small-breed timeline; Akitas take about 18 months with far larger weekly gains during peak growth.