A kendo sword, also known as a shinai, typically weighs around 500 grams (17.6 ounces). The weight of a shinai can vary slightly depending on factors such as the specific materials used, the style of construction, and the preferences of the practitioner.

A shinai consists of several bamboo slats bound together with leather or cord, forming a flexible and lightweight sword. The structure of the shinai allows for safe and controlled strikes during kendo practice and sparring.

The lightweight nature of the shinai enables practitioners to perform quick and agile movements, emphasizing speed, accuracy, and proper technique. The relatively low weight of the shinai helps reduce the risk of injury during training while still providing a realistic experience and feedback in terms of striking and timing.

It's important to note that while a shinai is light, the practice of kendo requires physical conditioning and the development of proper technique to effectively wield the sword, maintain balance, and execute strikes with precision.