Lean Body Mass Calculator - Calculate Your Muscle Mass

Are you trying to lose weight or build muscle? Do you want to know how much of your body weight is made up of lean tissue? Lean body mass (LBM) is the weight of your body minus the weight of your fat. It includes your bones, organs, and muscles. Calculating your LBM can help you understand how much of your weight is muscle and how much is fat. In this article, we'll explain what LBM is, how to calculate it, and provide examples.

What is Lean Body Mass?

Lean body mass (LBM) is the weight of your body minus the weight of your fat. It includes your bones, organs, and muscles. Your LBM is an important factor in determining your overall health and fitness. It can help you set weight loss or muscle-building goals and track your progress.

How to Calculate Lean Body Mass

There are several ways to calculate your LBM. Two common methods for calculating LBM are the body fat percentage (BFP) method and the Boer formula.

Body Fat Percentage (BFP) Method

The BFP method is based on the percentage of your body weight that is fat. To use this method, you'll need to know your body fat percentage, which can be measured using various techniques such as skinfold calipers, bioelectrical impedance analysis, dual-energy X-ray absorptiometry, or you can use our bfp calculator.

Once you know your body fat percentage, you can calculate your LBM using the following formula:

\text{LBM} = \text{Body Weight} - \text{Body Weight}*\text{BFP}

Where LBM is the lean body mass, body weight is the weight in kgs and bfp is the body fat percentage.

For example, if you weigh 78 kg and your BFP is 20%, your LBM would be:

\text{LBM} = 78 - 78*\dfrac{20}{100}= 62.4kg

Boer Formula

The Boer formula is another method for calculating LBM. It is based on your gender, height, and weight. The formula for men is:

\text{LBM} = 0.407*\text{Weight}+0.267*\text{Height}-19.2

The formula for woman is:

\text{LBM} = 0.252*\text{Weight}+0.473*\text{Height}-48.3

Where weight and height are you body weight and height and are used in kgs and cm units respectively.

How to Use the Lean Body Mass Calculator

To make calculating your LBM easier, we have created this lean body mass calculator. Simply enter your weight(in kg) and body fat percentage, or select your gender and enter your weight(in kg) and height(in cm) and the calculator will do the rest. Here's an example of a lean body mass calculator:

If you are a 30-year-old woman who weighs 130 pounds and is 5 feet 6 inches (167.6 cm) tall, your LBM would be:

• Convert your weight to kilograms:130 pounds ÷ 2.2046 = 58.97 kg
Convert your height to centimeters:5 feet 6 inches = 167.6 cm
• Plug in the numbers into the calculator:LBM = 0.252*58.97+0.473*167.6-48.3 = 45.84 kg
• Convert the result back to pounds:45.84 kg x 2.2046 = 101.05 pounds

Using a lean body mass calculator can help you quickly and accurately determine your LBM.
Note! to use `Boer Formula` in our calculator empty the `BFP` input field..
It's important to note that different calculators may use different formulas or methods for calculating LBM, so the results may vary slightly.

Conclusion

Understanding your lean body mass is an important part of achieving your health and fitness goals. By calculating your LBM, you can determine how much of your weight is made up of muscle and set realistic goals for weight loss or muscle gain. Whether you use the BFP method or the Boer formula, or a lean body mass calculator, knowing your LBM can help you make informed decisions about your diet and exercise routine.