A Rat Terrier stands 10 to 13 in (25 to 33 cm) at the shoulder (Miniature size).
Height is measured at the withers, the top of the shoulders. The head and ears extend above that line. The American Kennel Club breed profile gives 10–13 miniature; 13–18 standard. Choose the sex or size variety above where the source separates them. A range describes the published listing, not the height of every individual dog.
Ranked by the tallest height its standard names (18 in), the Rat Terrier is the joint 91st smallest of the 297 dog breeds on this site. See the smallest dog breeds ranked.
Drawn at the same 10 in: Lancashire Heeler, Australian Terrier and Cairn Terrier. Same drawing, different listings: a Rat Terrier’s, a Lancashire Heeler’s and an Australian Terrier’s figures are each the lower end of its range.
This is a published species or breed reference, not a prediction for an individual animal. Where a range is supplied, both ends appear with the reading. Shoulder height and head height are kept apart when comparing animals.
All 38 terrier dogs by height, tallest first, or every dog breed. To compare your own dog, measure it at the withers.
A Rat Terrier stands 10 to 13 in (25 to 33 cm) at the shoulder (Miniature size). Miniature size (kennel club profile).
Source: American Kennel Club
The published range runs from 10 in (25.4 cm) to 13 in (33 cm).
Draw this heightA Rat Terrier stands 13 to 18 in (33 to 46 cm) at the shoulder (Standard size). Standard size (kennel club profile).
Source: American Kennel Club
The published range runs from 13 in (33 cm) to 18 in (45.7 cm).
Draw this heightBrowse things and places for more comparisons.
| APA | Heightvs. (2026, October 22). How tall is a Rat Terrier? 10 to 13 in at the shoulder. https://heightvs.com/how-tall/rat-terrier |
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| MLA | “How Tall Is a Rat Terrier? 10 to 13 in at the Shoulder.” Heightvs, 22 Oct. 2026, heightvs.com/how-tall/rat-terrier. |
| Chicago | “How Tall Is a Rat Terrier? 10 to 13 in at the Shoulder.” Heightvs. Last modified October 22, 2026. https://heightvs.com/how-tall/rat-terrier. |
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For the height itself, cite the original publisher as well: American Kennel Club.
