Kickboxing weight classes

Kickboxing weight classes are weight classes that pertain to the sport of kickboxing.
Organizations will often adopt their own rules for weight limits, causing ambiguity in the sport regarding how a weight class should be defined. For a variety of reasons (largely historical), weight classes of the same name can be of vastly different weights. For example, a boxing middleweight weighs up to 72 kg (160 lb), an ISKA middleweight upper limit is 75 kg (165 lb), and a K-1 middleweight upper limit is 70 kg (154 lb).
Comparison of organizations.
This table gives names and limits recognised by the widely regarded sanctioning bodies and promotions in professional kickboxing, Muay Thai and shoot boxing. 
AJKF.
The (now defunct) All Japan Kickboxing Federation (AJKF) utilized the following weight classes:
Glory.
Glory utilizes the following weight classes:
IKF.
The International Kickboxing Federation (IKF) utilizes the following weight classes:
ISKA.
The International Sport Kickboxing Association (ISKA) utilizes the following weight classes:
It's Showtime.
It's Showtime (now defunct) utilized the following weight classes:
K-1.
K-1 utilizes the following weight classes:
K-1 JAPAN.
K-1 Japan Group utilizes the following weight classes:
KOK.
King of Kings (KOK) utilizes the following weight classes:
Krush.
Krush utilizes the following weight classes:
MAJKF.
The Martial Arts Japan Kickboxing Federation (MAJKF) utilizes the following weight classes:
NJKF.
The New Japan Kickboxing Federation (NJKF) utilizes the following weight classes:
PKA.
The (now defunct) Professional Karate Association (PKA) utilized the following weight classes:
ONE Championship.
The ONE Championship utilizes the following weight classes:
RISE.
Real Impact Sports Entertainment (RISE) utilizes the following weight classes:
Shoot Boxing.
The Shoot Boxing utilizes the following weight classes:
Superkombat.
Superkombat Fighting Championship utilizes the following weight classes:
Superleague.
Superleague utilizes the following weight classes:
WAKO.
The World Association of Kickboxing Organizations (WAKO) utilizes the following weight classes:
WBC Muaythai.
The World Boxing Council Muaythai (WBC Muaythai) utilizes the following weight classes:
WFCA.
The World Full Contact Association (WFCA) utilizes the following weight classes:
WKA.
The World Kickboxing Association (WKA) utilizes the following weight classes:
WKN.
The World Kickboxing Network (WKN) utilizes the following weight classes:
WMC.
The World Muaythai Council (WMC) utilizes the following weight classes:
WPMF.
The World Professional Muaythai Federation (WPMF) utilizes the following weight classes: