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Body Fat Percentage (Estimated)

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Estimates body fat percentage based on height, weight, gender, and age.
Intended for those 18 years of age and older. High school students and younger will not receive accurate results.

Since this estimation formula is based on an average body type, it may not apply to people who do not fit this average.
(e.g., those who are extremely overweight, extremely underweight, athletes, or those who have been doing strength training correctly for a long time)

Additionally, if your measurements deviate significantly from the average, the result may be a negative value.
Height
cm
Weightkg
Gender
Age
years old
Body Fat Percentage (Estimated) %
Body Fat (Estimated) kg
Lean Body Mass (Estimated) kg
BMI 
Basal Metabolic Rate (Estimated) kcal
Resting Metabolic Rate (Estimated) kcal
The standards by gender are as follows.

Created based on the Tanita chart. Please refer to the related links below for an easy-to-read table.

Body Type  Body Fat Percentage by Age (Men)
────────────────────────────────────────
    Up to 14 years old 15–17 years old  18–39 years old  40–59 years old   60 years and older
────────────────────────────────────────
Underweight ~6%  ~8%   ~11%   ~12%   ~14%
────────────────────────────────────────
Normal (-) 6–15%  8–15%  11–16%  12–17%  14–19%
────────────────────────────────────────
Normal (+) 15–24% 15–24% 16–24%  17–25%  19–25%
────────────────────────────────────────
Mildly Obese  24–27% 24–28% 24–28%  25–28%  25–30%
────────────────────────────────────────
Obese   27% or higher  28% or higher  28% or higher   28% or higher   30% or higher
────────────────────────────────────────


Body Type  Body Fat Percentage by Age (Women)       
────────────────────────────────────────
     Up to age 13 14–17 years  18–39 years  40–59 years   60 years and older
────────────────────────────────────────
Underweight    Up to 15%  Up to 18%  Up to 21%   Up to 22%   Up to 23%
────────────────────────────────────────
Normal (-) 15–25% 18–27% 21–28%  22–29%  23–30%
────────────────────────────────────────
Normal (+) 25-33% 27-35% 28-34%  29-35%  30-36%
───────────────────────────────────────
Mild Obesity  33–38% 35–40% 34–40%  35–41%  36–42%
───────────────────────────────────────
Obese    38% or higher  40% or higher  40% or higher   41% or higher   42% or higher
────────────────────────────────────────


BMI formula: 1.3 × weight ÷ height (m)^2.5 (Adopts the modified formula by Lloyd N. Trefazen, which takes height into account)

Reference: Body Fat Percentage Estimation Formula for Japanese Adults Aged 18 and Older
http://science.cc.kochi-u.ac.jp/download/?t=LD&id=682&fid=1463

Calculation formula:
 Men: Body Fat Percentage = (3.02 + 0.461 × Weight − 6.85 × 1 − 0.089 × Height + 0.038 × Age − 0.238) ÷ Weight × 100
 Women: Body Fat Percentage = (3.02 + 0.461 × Weight – 0.089 × Height + 0.038 × Age – 0.238) ÷ Weight × 100

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