Muscle Mass Calculator [Comparison of Male and Female Averages]" is now available on Mednor Free Health Care Tools Mednor's free health care tool Calculate 5 indicators such as lean body mass, muscle mass, FFMI, SMI, etc. at once

~Compatible with Kouri 1995's FFMI assessment chart and AWGS 2019's sarcopenia signs determination. At-a-glance comparison with averages by gender and age group to determine your own muscle mass position ~.

2026.06.03 16:45

Hospitality Marketing Limited

Hospitality Marketing Limited has released "Muscle Mass Calculator [Average Comparison of Men and Women] ( https://www.edsnv.com/tools/kinniku-ryou-keisan/ )," a free tool for calculating muscle mass and related indicators all at once, on June 2, 2026 on Mednor Free Health Care Tools ( https://www.edsnv.com/tools/kinniku-ryou-keisan/ ), a collection of free tools for daily health management. The tool is available on June 2, 2026 on Mednor Free Healthcare Tools ( https://www.edsnv.com/tools/ ), a collection of free tools to help you manage your daily health.

筋肉量計算ツール【男性・女性の平均比較】｜メドノア無料ヘルスケアツール

Muscle mass calculation tool [Average comparison between men and women]｜Mednor Free Health Care Tool

This tool, "Muscle mass calculation tool," is a free tool that collectively calculates five indices: lean body mass (LBM), muscle mass/skeletal muscle mass (SMM), FFMI, corrected FFMI, and skeletal muscle index (SMI) by simply entering body fat percentage, gender, age, height, and weight. The tool also displays comparisons with age-specific averages for men and women, as well as an FFMI evaluation chart and sarcopenia symptom assessment, allowing you to grasp the level of your own muscle mass from multiple perspectives.

The main functions of this tool are as follows.

Batch calculation of 5 indicators related to muscle mass

The following five indicators are calculated and displayed simultaneously based on the input of body fat percentage, sex, age, height, and weight.

Lean Body Mass (LBM): Weight minus fat mass

Skeletal Muscle Mass (SMM): Weight of skeletal muscles responsible for body movement.

FFMI (Fat-Free Mass Index): An index of lean body mass corrected for height.

Adjusted FFMI (FFMI): FFMI normalized to 180 cm height.

Skeletal Muscle Mass Index (SMI): An index of skeletal muscle mass corrected for height.

Comparison with averages by sex and age

Displays comparisons with the average values for the entered gender and age. You can check at a glance where your muscle mass, FFMI, and SMI stand in comparison to the average.

FFMI evaluation chart (based on Kouri 1995)

Based on the FFMI value, a judgment such as "thin/below average/average/above average/high" is displayed based on the Kouri 1995 evaluation table.

■Sarcopenia Signs Determination (AWGS 2019)

Based on SMI values, determine signs of sarcopenia, an indicator of age-related muscle mass loss, based on the Asian Sarcopenia Working Group (AWGS) 2019 criteria.

■Fast Facts by Age

The tool provides a quick reference table of average muscle mass, FFMI, and SMI by age group for men and women, respectively, so that you can refer to the standard values for other age groups than your own.

The tool can be used in the following situations.

When you want to know the difference between your current muscle mass and the average in training or body composition management.

When you want to check specialized indices such as FFMI and SMI all at once.

When you want to check the signs of sarcopenia (risk of losing muscle mass in old age) in a simple self-check.

When you want to quickly check the calculation formulas and evaluation criteria for lean body mass, FFMI, SMI, etc.

Tool Information

Tool name: Muscle mass calculation tool [Comparison of male and female averages

URL ： https://www.edsnv.com/tools/kinniku-ryou-keisan/

Calculation indices: lean body mass (LBM) / muscle mass and skeletal muscle mass (SMM) / FFMI / corrected FFMI / SMI

　　　　　　 FFMI / corrected FFMI / skeletal muscle index (SMI)

Evaluation criteria: FFMI evaluation chart (Kouri 1995)/Sarcopenia sign assessment (AWGS 2019)

How to use : Completely free of charge from PCs and smartphones, no registration required

Release Date : June 2, 2026

■Medical Reliability

The validity of the use of data references in this tool and the text in the tool pages have been checked for any unnatural medical descriptions or expressions by a nurse with experience editing medical journals.

We hope you will use this tool for muscle mass management, training goal setting, and early detection of signs of sarcopenia.

We will continue to release free tools to help you manage your health, so please stay tuned.

Mednor Free Health Care Tools (https://www.edsnv.com/tools/)

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