A naginata is a traditional Japanese polearm that features a long wooden shaft with a curved blade attached to the end. The size of a naginata can vary, but typically it has an overall length ranging from around 6 to 9 feet (1.8 to 2.7 meters).

The blade portion of a naginata typically measures between 12 to 18 inches (30 to 45 centimeters) in length. The curved blade is mounted on the end of the pole and is designed for cutting and thrusting attacks.

The length of the shaft or pole of a naginata can vary depending on the specific design, intended use, and personal preferences of the wielder. Naginatas used for training or martial arts practice may have shorter poles, while ceremonial or historical replicas might have longer ones.

The naginata was historically used by samurai and warrior monks in Japan. It was known for its versatility and effectiveness in both close combat and in keeping opponents at a distance. The length of the naginata allowed for extended reach, while the curved blade offered cutting power and versatility.

It's important to note that while there are general guidelines for the size of a naginata, variations can exist based on historical period, regional styles, and individual preferences.

In summary, a naginata typically has an overall length ranging from 6 to 9 feet (1.8 to 2.7 meters), with the blade portion measuring between 12 to 18 inches (30 to 45 centimeters). The size can vary based on design, use, and personal preferences.