Finding the ideal Kaku Obi (Iaido belt) length is simple with the Kataaro Kaku Obi Size Calculator. Whether you practice Iaido, Kyudo, Aikido, or another traditional Japanese martial art, choosing the correct belt size is essential for comfort, appearance, and performance. This calculator recommends the ideal belt length based on your waist measurement. It assumes the traditional triple-wrap tying method and Kataaro's standard 4-inch-wide Kaku Obi. Enter your waist measurement in either inches or centimeters, and the recommended belt length will be displayed in inches to match Kataaro sizing.
After entering your measurements, the calculator instantly recommends a belt length that provides the proper amount of material for the traditional square knot, making it easy to choose the correct Kataaro Kaku Obi with confidence.
For additional sizing guidance, visit Kataaro's comprehensive Belt Information Page for details on sizing, materials, and care. Whether you're purchasing your first Iaido belt or replacing an experienced Kaku Obi, this calculator helps eliminate guesswork so you can order with confidence.