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Calkulon

Praktisch

Body Fat Calculator

Körperfettanteil Rechner

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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.

Was ist 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.

Formel

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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

Variablenbeschreibung

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

Anleitung 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

Gelöste Beispiele

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

Praktische Anwendungen

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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%+

Häufig gestellte Fragen

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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?

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

Nur zu Informationszwecken. Dieses Tool ersetzt keine professionelle medizinische Beratung, Diagnose oder Behandlung. Konsultieren Sie immer einen qualifizierten Arzt.
Formula-verified for precision
Reviewed October 2026
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