What is walk-around weight?

Walk-around weight is a fighter's normal bodyweight between camps, when not actively cutting. Fighters usually compete a weight class or two below it, dropping water and food weight in the final week to hit the contracted limit.

Which weight classes does this use?

It uses the unified men's MMA weight classes adopted by the UFC and most major promotions, from strawweight at 115 pounds up to heavyweight at 265 pounds. ONE Championship uses a different, hydration-tested system with higher limits.

How big a cut is too big?

Dropping more than roughly eight percent of bodyweight in a fight week is considered aggressive and carries real health and performance risks. The tool flags cuts over that threshold and suggests considering the next class up.

How is the class chosen?

The tool picks the heaviest class whose weight limit is at or below the walk-around weight, since fighters cut down to a limit rather than up to it. If you weigh less than the lightest limit it suggests the lightest class.

Is rehydration accounted for?

Indirectly. Fighters cut water to make weight, then rehydrate before the bout, often returning above the limit. This tool sizes the cut from walk-around weight; safe rehydration and medical oversight are essential and beyond its scope.

What is the MMA Weight Class Finder?

Find the right MMA weight class: enter a fighter's walk-around bodyweight in pounds or kilograms to get the appropriate unified weight class, the cut required to make the limit, and a safety flag on aggressive cuts. It runs free in your browser on Gera Tools, with nothing uploaded.

MMA Weight Class Finder

Name: MMA Weight Class Finder
Creator: Gera Tools
License: https://creativecommons.org/licenses/by/4.0/

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Picking a weight class is a balance between cutting hard enough to be the bigger fighter and not draining yourself dangerously. This finder maps a walk-around bodyweight onto the unified MMA classes and sizes the cut so you can judge whether it is sensible.

How it works

The tool converts your input to pounds and selects the heaviest class whose limit is at or below your walk-around weight, because fighters cut down to a limit:

target = heaviest class where limit <= walk-around weight
cut    = walk-around weight − class limit
cut %  = cut / walk-around weight × 100

The unified men’s limits used are 115, 125, 135, 145, 155, 170, 185, 205 and 265 pounds. A cut above 8 percent of bodyweight is flagged as aggressive.

Tips and notes

Water cuts in the final days can shift 5 to 8 percent of bodyweight, but pushing beyond that risks kidney strain, poor performance, and failed weigh-ins. If the tool flags an aggressive cut, the safer play is usually to move up a class and fight closer to your natural size. Note that ONE Championship bans extreme dehydration cuts and tests hydration, so its limits and this unified scale are not interchangeable.

The full unified weight-class ladder

Class	Limit (lb)	Limit (kg approx.)
Strawweight	115	52.2
Flyweight	125	56.7
Bantamweight	135	61.2
Featherweight	145	65.8
Lightweight	155	70.3
Welterweight	170	77.1
Middleweight	185	83.9
Light Heavyweight	205	93.0
Heavyweight	265	120.2

Catchweights are sometimes used for bouts where a fighter misses or the agreed limit sits between two named classes; they have no official name and are not included here.

How the cut percentage guides the decision

A percentage-based threshold is more meaningful than a raw pound figure because a 15 lb cut from 200 lb (7.5%) is less stressful than 15 lb from 160 lb (9.4%). The tool flags cuts above 8% as aggressive based on commonly cited sports-medicine guidance, but the right threshold depends on the fighter’s individual physiology, how quickly they rehydrate, and when the weigh-in is relative to the bout.

What aggressive cuts actually cost

Heavy water cutting depresses muscular strength and endurance before the bout, can impair reaction time if rehydration is incomplete, and raises injury risk. Same-day weigh-ins (increasingly used in amateur promotions and some regional pro events) sharply limit how much a fighter can safely cut compared to the traditional next-day format, where the overnight window allows fuller rehydration.

Using this tool for class selection

If you are a coach or competitor deciding whether to drop a class, the key question is not just whether the cut percentage is under 8%, but whether the athlete can reach the limit through training and lean-out before fight week even begins, reducing the acute water cut to 3–5%. Fighters who are naturally within 5% of a class limit typically compete without lasting physical cost; those regularly cutting 10%+ may find moving up and fighting closer to walk-around weight yields better performance even if they are smaller than their opponent on paper.