A nodachi, which is a traditional Japanese longsword, is known for its considerable size and length. The weight of a nodachi can vary depending on factors such as the specific design, craftsmanship, and materials used. On average, a nodachi typically weighs between 4 to 6 pounds (1.8 to 2.7 kilograms).

Due to its longer blade and overall size, a nodachi is generally heavier than other types of Japanese swords like the katana or wakizashi. The weight of a nodachi is concentrated in the blade, which is typically made of high-quality steel and features a longer tang that extends into the handle.

It's important to note that the weight of an individual nodachi can vary slightly depending on factors such as the length and thickness of the blade, the specific design, and the materials used.

Additionally, the preferences of the sword owner or collector can also influence the weight, as some nodachi may be intentionally made lighter or heavier based on personal preferences or intended use.

In summary, a nodachi typically weighs between 4 to 6 pounds (1.8 to 2.7 kilograms), although the weight can vary depending on factors such as design, craftsmanship, and materials used. The larger size and longer blade of a nodachi contribute to its relatively heavier weight compared to other Japanese swords.