Calculator
Estimate body fat with the U.S. Army (AR 600-9) tape method and check the standard.
Nhọrọ ndị ahụ ga-akpụzi mgbe ị na-etipụta.
N'ihe banyere calculator a
The U.S. Army body fat calculator uses the AR 600-9 circumference (tape) method to estimate body-fat percentage from height and a few measurements. Men use abdomen minus neck; women use waist plus hip minus neck. It also compares the result against the Army maximum allowable body fat for your age and sex.
The formula works on the logarithm of a circumference difference. For a man 70 in tall with a 34 in abdomen and 16 in neck, %BF = 86.010 × log10(34 − 16) − 70.041 × log10(70) + 36.76 ≈ 15.5%. Against the maximum of 22% for a soldier aged 21–27, that is within standard. Women use %BF = 163.205 × log10(waist + hip − neck) − 97.684 × log10(height) − 78.387, with every measurement in inches.
The maximum allowable body fat rises with age — for men 20% at 17–20 up to 26% at 40+, and for women 30% up to 36% across the same bands — and the tool flags whether you pass. Measure the abdomen at the navel and the neck just below the larynx; women add the hips at their widest. The tape method is a practical screen, not a lab-grade measurement like DEXA, and this tool is for reference, not official assessment.
Ajụjụ ndị a na-ajụkarị
Gịnị bụ AR 600-9 formula?
Maka ndị nwoke,%BF = 86.010 × log10(abdomen − neck) − 70.041 × log10(height) + 36.76. Maka ụmụanyị,%BF = 163.205 × log10(waist + hip − neck) − 97.684 × log10(height) − 78.387, na nlele niile n'ime inch.
Gịnị bụ nke kasị ukwuu na-ekweta Army ahụ fat?
Ọ na-amụba site n'oge. Maka ndị nwoke ọ bụ 20% (17-20), 22% (21-27), 24% (28-39) na 26% (40+); maka ụmụ nwanyị 30%, 32%, 34% na 36% n'ime bands ndị ahụ. Calculator flags ma ị nọ n'ime oke.
Olee otú nke a si dị iche na ụzọ Navy?
Ha abụọ na-eji teepu nlele, mana ihenhọrọ ndị ahụ dị iche na ndị agha na-ewere nsonaazụ gị dịka ọrụ ahụ-nhazi n'ụzọ. Ha abụọ anaghị agbanwe ụzọ ahụ dịka DEXA maka nghọta.
Gịnị bụ nnwale táàbụ̀ Army?
It estimates body fat from a few tape measurements instead of calipers or a scale. Men measure neck and abdomen; women measure neck, waist and hip, all in inches, and the AR 600-9 formula converts them to a body-fat percentage.
Olee otú m ga-esi banye n'akwụkwọ ntọala ahụhụ ahụ?
N'ihi ya, ọbụla n'ime gị na-atụ anya na ọ ga-abụ na ma ọ bụ n'okpuru nke kasị ukwuu maka gị afọ na nwoke - dịka ọmụmaatụ 22% maka nwoke na-adịbeghị anya 21-27. The calculator flags whether your result is within the limit.
Ebee ka m ga-ewere ihenhọrọ ndị ahụ?
Men measure the abdomen at the navel and the neck just below the larynx; women measure the natural waist at its narrowest point, the hips at their widest, and the neck. Average repeated measurements and round as the regulation specifies.
Olee otú ụzọ ụzọ njikọ táàbụ̀ si dị?
Ọ bụ a n'ụzọ dị mfe nnyocha n'ihe atụ na nwere ike ịdị iche na-alaghachi site na lab ụzọ dị ka DEXA site na ọtụtụ ihe. Ọ na-abịa ka ọ bụrụ na-adịghị n'ụzọ ziri ezi maka very muscular ma ọ bụ very lean ndị mmadụ, nke bụ ihe mere ọ bụ a ọrụ ụkpụrụ kama a precise measurement.
API — jiri kaadị a site na kóòdù
Kpọọ kalkulata a dịka ebe ngwụcha JSON n'efu - enweghị kii achọrọ. Ziga valiu ebe ahụ n'okpuru dịka paramita ajụjụ mọọbụ JSON. Ihe ọbụla ị na-ewepụ na-eji dìfọ́ọ̀ltụ̀ nke a na-edebe ihuakwụkwọ a na ya; parameter a na-amaghị bụ 400, ọ dịghị sẽọ̀rọ̀. Gụọ ngwe ndị ahụ niile →
Ebemkpofuozi
GET https://calculator.free/api/v1/army-body-fat/curl
curl "https://calculator.free/api/v1/army-body-fat/?sex=male&age=25&units=imperial&height=70&neck=16&waist=34"JavaScript fetch()
const r = await fetch(
"https://calculator.free/api/v1/army-body-fat/?" + new URLSearchParams({
"sex": "male",
"age": "25",
"units": "imperial",
"height": "70",
"neck": "16",
"waist": "34"
}));
const data = await r.json();
console.log(data.results);Ihe a na-ahụta bụ n'ihi nlekọta n'ozuzu ya, ọ bụghị nlekọta ego, ọgwụ ma ọ bụ nlekọta ego.