What makes an odachi katana different from a standard katana?
Updated Feb 2026
The primary distinction between an odachi katana and a standard katana is blade length and overall scale. A standard katana typically measures between 38 and 42 inches in total length with a blade of 27 to 30 inches. An odachi katana is considerably larger - blade lengths of 35 inches or more are typical, with overall lengths that can range from 55 inches upward depending on handle and fitting proportions. This size difference is dramatic in person: an odachi katana commands significantly more physical presence in a room and creates a much stronger visual impact in a display arrangement. In terms of blade geometry, both feature the curved single-edged profile that defines the katana tradition, and both are built with full-tang construction and traditional Japanese fittings in this collection. The odachi katana is the choice for collectors who want the katana's classic aesthetic at the most imposing scale available in the category.