До Before bariatric surgery. Patient review
После After bariatric surgery. Patient review

Body Fat and Muscle Mass Percentage Calculator


The body fat and muscle mass percentage calculator helps determine body composition based on key parameters: age, weight, height, and circumference of various body parts. This metric is essential for assessing physical fitness, evaluating health status, and selecting an appropriate workout and nutrition plan. The optimal fat percentage depends on age and gender. A moderate amount of fat is necessary for normal bodily functions, but excess fat can lead to various health conditions. Use our calculator to find out your percentage and compare it with standard guidelines.


Body Fat and Muscle Mass Calculator



Body Fat Percentage Norms


Возраст Женщины (%) Мужчины (%)
15–20 лет 17–26% 10–20%
21–30 лет 18–28% 12–22%
31–40 лет 19–30% 13–24%
41–50 лет 21–32% 15–26%
51–60 лет 23–34% 16–28%
Старше 60 лет 24–36% 18–30%

Ideal Body Fat Percentage

Возраст Женщины (%) Мужчины (%)
18–20 лет 16.5–18.0% 7.0–9.0%
21–25 лет 17.0–19.5% 9.5–11.5%
26–30 лет 18.5–20.5% 11.5–13.5%
31–35 лет 20.0–22.0% 13.5–15.0%
36–40 лет 21.5–23.5% 15.0–16.5%
41–45 лет 22.5–24.5% 16.5–18.0%
46–50 лет 24.0–26.0% 18.5–20.5%
51–55 лет 25.5–27.5% 20.5–22.5%
56+ лет 26.5–28.5% 22.5–24.5%

Body Fat Percentage Categories

Category Women (%) Men (%)
Athletes 14–20% 6–13%
Fitness 21–24% 14–17%
Average 25–31% 18–24%
Obesity 32% and above 25% and above

Interesting Facts:

  • Women tend to have a higher body fat percentage due to physiological factors (reproductive function, hormonal balance).
  • Athletes have the lowest body fat percentage, but the level depends on the type of sport.
  • A body fat percentage lower than 5% for men and 12% for women can be harmful to health.

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