MODEL & FINISHED LENGTH

BJJ Belt Size Guide

KANJI belt lengths vary by model, even at the same labeled size. Compare them with a belt you already own.

KANJI BJJ belt tied at the waist

Finished length by model

Approximate end-to-end length with the belt laid flat.

Model A0 A1 A2 A3 A4 A5
ORIGINAL 248 cm 265 cm 285 cm 305 cm 333 cm 343 cm
CLASSIC 244 cm 264 cm 280 cm 300 cm 318 cm 340 cm
AIR 255 cm 270 cm 285 cm 300 cm 325 cm 350 cm
KAZE 250 cm 262 cm 282 cm 302 cm 330 cm 350 cm
KATANA 250 cm 262 cm 280 cm 300 cm 315 cm 335 cm

Finished measurements may vary by approximately 1–5 cm.

Measuring the full length of a straightened BJJ belt

3 steps before choosing a size

Use your current belt length and preferred tied fit—not body size alone—as your reference.

  1. Lay your current belt flat

    Straighten the belt and measure its full length from end to end.

  2. Compare the same model

    Finished length varies by model, even at the same labeled size. Compare against the model you want.

  3. Check the knot and tail length

    Tie the belt as usual and use your preferred knot tension and balanced tail length as the final reference.

Check the balance after tying

Tail length varies with your knot and gi. Cotton can shrink slightly, so avoid high-temperature washing and drying.

KANJI BJJ belt with balanced tails after tying