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Body Fat Calculator

Body Fat Calculator

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We're working on a comprehensive educational guide for the Body Fat Calculator in your language. The content below is shown in English.

ما هو Body Fat Calculator?

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A body fat percentage calculator estimates fat mass as a proportion of total body weight using skinfold measurements, circumference methods (US Navy), or BMI-derived formulas.

Calkulon makes complex calculations simple — built for students and everyday problem-solvers.

الصيغة

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f(x)US Navy (men): %BF = 86.010×log(waist−neck) − 70.041×log(height) + 36.76; (women): 163.205×log(waist+hip−neck) − 97.684×log(height) − 78.387

شرح المتغيرات

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رمزالاسموحدةالوصف
%BFBody fat percentage%—
WWaist circumferencecm—
HHeightcm—
NNeck circumferencecm—

كيفية Body Fat Calculator

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  1. 1US Navy method (men): 86.010×log(waist−neck) − 70.041×log(height) + 36.76
  2. 2US Navy method (women): 163.205×log(waist+hip−neck) − 97.684×log(height) − 78.387
  3. 3Jackson-Pollock: uses skinfold caliper measurements
  4. 4DEXA scan is the gold standard but requires clinical equipment

أمثلة محلولة

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مثال 1
معطى:Male, waist 85cm, neck 38cm, height 178cm
النتيجة:Body fat ≈ 86.010×log(47) − 70.041×log(178) + 36.76 ≈ 17.5%

تطبيقات عملية

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Fitness tracking and progress monitoring

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Athletic performance assessment

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Health risk evaluation

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Nutritionist consultation baseline

Body Fat % Categories (ACE)

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CategoryMenWomen
Essential fat2–5%10–13%
Athletes6–13%14–20%
Fitness14–17%21–24%
Acceptable18–24%25–31%
Obese25%+32%+

أسئلة شائعة

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Q

What's a healthy body fat percentage?

A

Athletes: 6-13% (male), 14-20% (female). Fitness: 14-17% (male), 21-24% (female). Varies by age and sport.

Q

Is BMI the same as body fat %?

A

No. BMI = weight/height² and doesn't distinguish muscle from fat. Body fat % is more accurate for health.

Q

How accurate is the Navy method?

A

Accurate within ±2-3%. DEXA scan (clinical) is more precise but requires equipment and cost.

لأغراض المعلومات فقط. هذه الأداة ليست بديلاً عن الاستشارة الطبية أو التشخيص أو العلاج المهني. استشر دائمًا متخصصًا مؤهلاً في الرعاية الصحية.
Formula-verified for precision
Reviewed October 2026
Our methodology

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