[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"hesap-icerik:bmi-calculator":3,"seo-meta:\u002Fen\u002Ftools\u002Fbmi-calculator":35},{"icerik":4},{"slug":5,"sections":6,"faq":19},"bmi-calculator",[7,11,15],{"id":8,"title":9,"html":10},"how-this-calculation-works","How this calculation works","\u003Cp>Body mass index is a one line formula that divides your weight by the square of your height:\u003C\u002Fp>\n\u003Cp>\u003Cstrong>BMI = weight (kg) ÷ [height (m) × height (m)]\u003C\u002Fstrong>\u003C\u002Fp>\n\u003Cp>In pounds and inches the same formula carries a conversion factor: \u003Cstrong>BMI = 703 × weight (lb) ÷ [height (in) × height (in)]\u003C\u002Fstrong>. For someone who is 5 ft 8 in and 163 lb, that is 703 × 163 ÷ (68 × 68) = 24.8.\u003C\u002Fp>\n\u003Cp>The formula was developed in the 1830s by the Belgian statistician Adolphe Quetelet, and judging one person was never its purpose. Quetelet was trying to describe the average proportions of populations. That is still its most accurate use today: taking a quick snapshot of how a large group is distributed.\u003C\u002Fp>\n\u003Cp>afiet runs this page with the same engine as the app, so the number you see here is the number you see on your phone. The height and weight you type never leave your browser; they are not sent to us and not stored.\u003C\u002Fp>\n",{"id":12,"title":13,"html":14},"how-to-read-your-result","How to read your result","\u003Cp>These are the thresholds the World Health Organization uses for adults. afiet names them in its own language, because speaking to a person in words that pass judgement is not our job:\u003C\u002Fp>\n\u003Ctable>\n\u003Cthead>\n\u003Ctr>\n\u003Cth>Value\u003C\u002Fth>\n\u003Cth>What afiet calls it\u003C\u002Fth>\n\u003C\u002Ftr>\n\u003C\u002Fthead>\n\u003Ctbody>\n\u003Ctr>\n\u003Ctd>Under 18.5\u003C\u002Ftd>\n\u003Ctd>Lighter range\u003C\u002Ftd>\n\u003C\u002Ftr>\n\u003Ctr>\n\u003Ctd>18.5 to 24.9\u003C\u002Ftd>\n\u003Ctd>Balance range\u003C\u002Ftd>\n\u003C\u002Ftr>\n\u003Ctr>\n\u003Ctd>25 to 29.9\u003C\u002Ftd>\n\u003Ctd>Above balance\u003C\u002Ftd>\n\u003C\u002Ftr>\n\u003Ctr>\n\u003Ctd>30 and over\u003C\u002Ftd>\n\u003Ctd>Higher range\u003C\u002Ftd>\n\u003C\u002Ftr>\n\u003C\u002Ftbody>\n\u003C\u002Ftable>\n\u003Cp>The thresholds look fixed, but they do not mean the same thing in every body. The formula has three known blind spots:\u003C\u002Fp>\n\u003Cp>\u003Cstrong>It cannot tell muscle from fat.\u003C\u002Fstrong> Muscle is denser than fat. Someone who lifts regularly can land "above balance", and someone with low muscle mass can sit inside the balance range. The number is not saying the same thing about those two people.\u003C\u002Fp>\n\u003Cp>\u003Cstrong>It does not know where the weight sits.\u003C\u002Fstrong> Two people with the same index can carry very different amounts of fat around the middle, and where it sits matters more for health than the total.\u003C\u002Fp>\n\u003Cp>\u003Cstrong>It was built on one population.\u003C\u002Fstrong> The cut-offs come largely from European populations. The WHO itself notes lower action points for many Asian populations, which is a plain admission that a single table does not fit every body.\u003C\u002Fp>\n\u003Cp>So read the index as one signal among several, not as a grade. It is a starting point for a conversation with a professional who can see the rest of you.\u003C\u002Fp>\n",{"id":16,"title":17,"html":18},"turning-the-index-into-plate-language","Turning the index into plate language","\u003Cp>An index tells you where you stand today. It does not tell you what to eat tomorrow, and this is exactly where most calculators stop, right after handing you an "ideal weight". afiet does not produce one, on purpose: a target weight sets up a promise about a date, and food does not work on a schedule.\u003C\u002Fp>\n\u003Cp>What helps instead is the shape of a normal day. Your daily portions tool turns the same body data into hand measures: how many palms of protein, how many fists of vegetables, how many cupped hands of grains, how many thumbs of added fat. The measure is your own hand, so it already scales to your body.\u003C\u002Fp>\n\u003Cp>Five food groups, colours instead of numbers, and a day that completes itself. That is what afiet does on your phone, and it starts from the same maths as this page.\u003C\u002Fp>\n",[20,23,26,29,32],{"q":21,"a":22},"Is BMI accurate?","It is accurate as a population measure and rough as a personal one. It cannot separate muscle from fat, it says nothing about where weight sits, and its cut-offs come mostly from European populations. Use it as one signal, not a verdict.",{"q":24,"a":25},"What is a healthy BMI?","For adults the World Health Organization places the balance range between 18.5 and 24.9. afiet shows you the range you are in and stops there; a healthy body is assessed by a professional who can see more than one number.",{"q":27,"a":28},"Why do you not give me an ideal weight?","Because an ideal weight quietly becomes a deadline, and deadlines are where guilt starts. afiet describes a balanced day and lets your body follow at its own pace.",{"q":30,"a":31},"Does BMI work for children and teenagers?","No. Under 18, assessment is done with age and sex percentiles rather than a single formula. afiet withholds targets entirely for that age.",{"q":33,"a":34},"Does muscle change my result?","Yes. Muscle weighs more than the same volume of fat, so athletes often read higher than their body composition suggests. If you want a composition estimate, the body fat calculator is a better fit.",{"path":36,"title":37,"description":38,"canonical":39,"robots":40,"ogTitle":41,"ogDescription":42,"ogImage":43,"ogImageAlt":44,"ogUrl":39,"ogSiteName":45,"ogLocale":46,"twitterSite":40,"themeColor":47,"verification":48,"jsonld":50,"faq":96,"ogType":97,"alternates":98},"\u002Fen\u002Ftools\u002Fbmi-calculator","BMI calculator (metric and imperial) | afiet","Calculate your body mass index from height and weight in ft\u002Flb or cm\u002Fkg. afiet uses judgment-free range language and gives no ideal weight; it also says what the index cannot tell you.","https:\u002F\u002Fafiet.co\u002Fen\u002Ftools\u002Fbmi-calculator","","What is your body mass index?","A rough signal from height and weight. Not a verdict about you, and no ideal weight.","https:\u002F\u002Fafiet.co\u002Fog.png","afiet. Sayma, dengele. Sofra illüstrasyonlu tanıtım görseli","afiet","en_US","#fdfaf3",{"google":49,"bing":40,"yandex":40},"0Px-78EMH3itFEWBomIMYqmH1oUEqYG1Z6l7fnRdNsA",[51,67,81],{"@context":52,"@type":53,"name":54,"url":39,"description":38,"applicationCategory":55,"browserRequirements":56,"inLanguage":57,"isPartOf":58,"offers":61,"publisher":65},"https:\u002F\u002Fschema.org","WebApplication","BMI calculator (metric and imperial)","HealthApplication","Requires JavaScript","en-US",{"@type":59,"name":45,"url":60},"WebSite","https:\u002F\u002Fafiet.co",{"@type":62,"price":63,"priceCurrency":64},"Offer","0","USD",{"@type":66,"name":45,"url":60},"Organization",{"@context":52,"@type":68,"itemListElement":69},"BreadcrumbList",[70,75,79],{"@type":71,"position":72,"name":73,"item":74},"ListItem",1,"Home","https:\u002F\u002Fafiet.co\u002Fen",{"@type":71,"position":76,"name":77,"item":78},2,"Tools","https:\u002F\u002Fafiet.co\u002Fen\u002Ftools",{"@type":71,"position":80,"name":54,"item":39},3,{"@context":52,"@type":82,"mainEntity":83},"FAQPage",[84,88,90,92,94],{"@type":85,"name":21,"acceptedAnswer":86},"Question",{"@type":87,"text":22},"Answer",{"@type":85,"name":24,"acceptedAnswer":89},{"@type":87,"text":25},{"@type":85,"name":27,"acceptedAnswer":91},{"@type":87,"text":28},{"@type":85,"name":30,"acceptedAnswer":93},{"@type":87,"text":31},{"@type":85,"name":33,"acceptedAnswer":95},{"@type":87,"text":34},null,"website",[99,102,104],{"hreflang":100,"href":101},"tr","https:\u002F\u002Fafiet.co\u002Fhesapla\u002Fvucut-kitle-indeksi",{"hreflang":103,"href":39},"en",{"hreflang":105,"href":101},"x-default"]