A chokuto is an ancient Japanese sword characterized by its straight, double-edged blade. The length of a chokuto can vary, but it is generally around 24 to 36 inches (61 to 91 centimeters) in blade length.

The chokuto is distinct from later Japanese swords like the curved katana, as it lacks the curvature typically associated with Japanese sword design. The straight blade of the chokuto is reminiscent of the ancient swords used in various cultures worldwide.

It's important to note that the measurements provided are approximate and can vary between individual chokuto swords due to variations in design, historical examples, regional traditions, and personal preferences.

The chokuto holds historical significance as one of the earliest known types of Japanese swords, evolving into more curved designs over time. While it is not commonly used or produced today, the chokuto represents an important stage in the development of Japanese swordmaking and design.

In summary, the blade length of a chokuto typically falls within the range of 24 to 36 inches (61 to 91 centimeters). It is characterized by its straight, double-edged blade and represents an early stage in the evolution of Japanese sword design.