Lean Body Mass Calculator For Women

The following calculator gives you an estimate of your lean body mass calculator with body fat percentage based on your weight, age, and thickness measurements of 7 skin folds, especially for women. It is based on the Jackson-Pollock 7-point method and is reasonably accurate for most females. However, this method, like almost all popular skin fold methods, tends to underestimate body fat levels in lean bodybuilders. Add your details below to the lean body mass calculator measurements.

Lean body mass is the total mass of the body which includes all the organs, skin, organs, bones, and everything else but excludes all the body fat present in any part of the body.


If you’re trying to lose weight, knowing your lean body mass (LBM) is critical. You can use your Lean mass to determine how much body fat you need to lose or how much you have already lost. Losing only muscle and not fat can have a significant impact on your body. Losing only fat mass can result in an unpleasant physical appearance as well as other health issues.

Calculating LBM allows you to know exactly how much fat percentage your body has and how much you need to lose to achieve your ideal body weight. It is a more precise method than measuring actual body weight.

How to Calculate Lean Body Mass for Males

However, there are numerous formulas for calculating lean body weight; here are some precise equations for measuring adult LBM:

The Boer Formula:

eLBM = 0.252W + 0.473H – 48.3

The James Formula:

eLBM = 1.07W – 148(WHxW/H)2

The Hume Formula:

eLBM = 0.29569W + 0.41813H – 43.2933

How to use LBM Calculator

Our LBM calculator, one of the precise and simple calculators used by many people worldwide, allows females to precisely measure lean body mass in a simple and free manner.

Simply enter some basic information in the fields provided and click the “calculate” button to get the results in seconds. Unlike other calculators that require waist length and other information.

Our lean body weight calculator allows users to select any unit for each measurement, such as weight, which can be expressed in kg, gram, pounds, pound-mass, or ounce.

Why calculate lean body mass?

There is no compelling reason to calculate a female’s lean body mass because it does not indicate how much weight they need to lose or gain. This calculator is mostly used by people who want to know how much they would weigh if they lost all of their body fat.

Difference Between BMI and Lean Body Mass

A person’s BMI (Body Mass Index) is calculated by dividing their height and weight by their height and weight ratio. It is used to determine how much fat a person has. Based on their height and weight ratio, BMI usually indicates whether a person is too thin or too fat. Lean body mass, on the other hand, is not used to lose fat. It is only used to calculate how much a person would weigh if they had no fat.

Average Lean Body Mass

The average lean body mass for a woman would be between 69 and 75 percent, and the average lean body mass for men would be between 76 and 82 percent. In 2000, the average lean body mass for women was between 69 and 76 percent, and the average lean body mass for men was between 75 and 86 percent.

NOTE: Because of the nature of some of the skin fold locations for the 7-point method you will need someone to take some of these measurements. To perform each measurement: Using the tips of your thumb and forefinger pinch the skin in the area to be measured. Pull the skin away from the muscle, ensuring to ‘get’ all the subcutaneous fat underneath the skin but don’t include the underlying muscle. Measure the thickness of this fold of fat and skin, in millimeters, with either a ruler (metric) or skinfold calipers. If you do have calipers, the jaws should be placed close to where the fingertips have the skin pinched so an accurate reading can be obtained (about 1 cm (1/4 in) away from the fingers). Release the caliper’s handles and wait 2 seconds before taking the reading. Take a reading of that same site a few more times (release the fold and get a new ‘pinch’ for each measurement) and take the average – each reading should be within 1 or 2 mm of each other. If you don’t have calipers you’ll have to make do with a ruler.

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