How big will my Australian Shepherd get?

Australian Shepherds typically reach an adult weight of 40 to 65 pounds. Males usually average 40-65 lbs, while females average 40-65 lbs.

When is a Australian Shepherd fully grown?

Most Australian Shepherds reach their maximum height by 12 months, but continue to fill out with muscle mass until about 18 months of age.

Expert Guide

Australian Shepherd Growth

Predict adult size and track your Australian Shepherd's development with precision.

Breed Overview

About the Australian Shepherd

Smart, work-oriented, and exuberant

Group

Herding

Size Category

Medium

Lifespan

12-15 years

Full Maturity

15 months

Temperament Traits

SmartWork-orientedExuberantGood-naturedActiveProtective

Growth Benchmarks

Expected Adult Weight

40-65lbs

Typical Male

40-65 lbs

Typical Female

40-65 lbs

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