A nodachi is a type of traditional Japanese sword that is characterized by its exceptionally long blade. The length of a nodachi blade can vary, but it is typically around 35 to 60 inches (89 to 152 centimeters) or even longer.

The nodachi is known for its impressive reach and cutting power. Due to its extended length, the nodachi requires two hands to wield effectively. It was primarily used in battlefield situations, where its long reach could provide an advantage against opponents.

The exact length of a nodachi can vary depending on the individual sword and historical context. The nodachi is considered to be longer than the average katana and tachi, making it one of the largest swords used in Japanese warfare.

It's worth noting that the nodachi is a historical sword and is not commonly seen in contemporary swordsmithing or martial arts practices. Modern reproductions or interpretations of the nodachi may vary in terms of dimensions and design.

In summary, the nodachi is characterized by its long blade, typically ranging from 35 to 60 inches (89 to 152 centimeters) or longer. Its impressive length and cutting power made it a formidable weapon on the battlefield. However, it's important to note that the nodachi is a historical sword and not commonly seen in modern contexts.