{"id":168,"date":"2020-01-21T15:29:04","date_gmt":"2020-01-21T13:29:04","guid":{"rendered":"https:\/\/calculatorsworld.com\/health\/?page_id=168"},"modified":"2026-08-29T12:10:36","modified_gmt":"2026-08-29T09:10:36","slug":"boys-bmi-calculator","status":"publish","type":"page","link":"https:\/\/calculatorsworld.com\/health\/boys-bmi-calculator\/","title":{"rendered":"Boys BMI calculator"},"content":{"rendered":"\n<p class=\"wp-block-paragraph\">Calculate BMI-for-age for boys aged 5\u201319 years. Enter age, height and weight to estimate BMI and compare it with reference values for boys of the same age.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Supported age range: 61\u2013228 months.<\/strong> Enter completed years and any additional months for the most appropriate comparison.<\/p>\n\n\n\n<div class=\"wp-block-columns is-layout-flex wp-container-core-columns-is-layout-8f761849 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<script id=\"calcwidgetscript\" src=\"https:\/\/calculatorsworld.com\/subdomainwidgets\/bmi-boys\/bmiboyswidget.js\" type=\"text\/javascript\"><\/script>\n\n\n\n<ins id=\"calc-settings\" data-title=\"Boys BMI Calculator\" data-bg_color=\"a7d2f7\" data-text_color=\"333\" data-border_color=\"0070ba\" data-header_footer_bg_color=\"0070ba\" data-header_footer_text_color=\"fff\" data-active_btn_bg_color=\"13b3e1\" data-measurement=\"imperial\"><\/ins><div id=\"cw-calc\"><\/div>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\"> <script async src=\"\/\/pagead2.googlesyndication.com\/pagead\/js\/adsbygoogle.js\"><\/script>\r\n<!-- CWHealth-Right-calc-336x280 -->\r\n<ins class=\"adsbygoogle\"\r\n     style=\"display:inline-block;width:336px;height:280px\"\r\n     data-ad-client=\"ca-pub-9204566102816811\"\r\n     data-ad-slot=\"1697617958\"><\/ins>\r\n<script>\r\n(adsbygoogle = window.adsbygoogle || []).push({});\r\n<\/script>\n<\/div>\n<\/div>\n\n\n <script async src=\"\/\/pagead2.googlesyndication.com\/pagead\/js\/adsbygoogle.js\"><\/script>\r\n<!-- CWHealth-Above-calc-responsive -->\r\n<ins class=\"adsbygoogle\"\r\n     style=\"display:block\"\r\n     data-ad-client=\"ca-pub-9204566102816811\"\r\n     data-ad-slot=\"5173828538\"\r\n     data-ad-format=\"auto\"><\/ins>\r\n<script>\r\n(adsbygoogle = window.adsbygoogle || []).push({});\r\n<\/script>\n\n\n\n<h2 class=\"wp-block-heading\">How boys&#8217; BMI is calculated<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">The BMI formula is the same as for adults\u2014weight in kilograms divided by height in metres squared\u2014but a child&#8217;s number must be interpreted by <strong>age and sex<\/strong>. The calculator compares the result with BMI-for-age reference values for boys. Measure height without shoes and use a current, accurate weight where possible.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Understanding the percentile range<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">A percentile compares the result with the reference population of boys of the same age. A result around the 75th percentile, for example, means the BMI is equal to or higher than that of approximately 75% of boys of the same age in the reference data.<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"420\" height=\"65\" src=\"https:\/\/calculatorsworld.com\/health\/wp-content\/uploads\/sites\/4\/kids-body-mass-index-percentiles.jpg\" alt=\"BMI-for-age percentile ranges for children and teenagers\" class=\"wp-image-137\" srcset=\"https:\/\/calculatorsworld.com\/health\/wp-content\/uploads\/sites\/4\/kids-body-mass-index-percentiles.jpg 420w, https:\/\/calculatorsworld.com\/health\/wp-content\/uploads\/sites\/4\/kids-body-mass-index-percentiles-300x46.jpg 300w\" sizes=\"auto, (max-width: 420px) 100vw, 420px\" \/><\/figure>\n\n\n\n<ul class=\"wp-block-list\"><li><strong>Underweight:<\/strong> below the 5th percentile<\/li>\n<li><strong>Healthy weight:<\/strong> from the 5th percentile to below the 85th percentile<\/li>\n<li><strong>Overweight:<\/strong> from the 85th percentile to below the 95th percentile<\/li>\n<li><strong>Obesity:<\/strong> at or above the 95th percentile<\/li><\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">Reference data and limitations<\/h2>\n\n\n\n<p class=\"has-very-light-gray-background-color has-background wp-block-paragraph\">The calculator&#8217;s age- and sex-specific values are based on the <a href=\"https:\/\/www.who.int\/tools\/growth-reference-data-for-5to19-years\" target=\"_blank\" rel=\"noreferrer noopener\">WHO 2007 growth reference for ages 5\u201319<\/a>. The descriptive percentile bands follow the categories explained by the <a href=\"https:\/\/www.cdc.gov\/bmi\/child-teen-calculator\/bmi-categories.html\" target=\"_blank\" rel=\"noreferrer noopener\">CDC for child and teen BMI<\/a>.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>BMI is a screening measure, not a diagnosis.<\/strong> Growth pattern, development, medical history and other factors matter. Discuss concerns or unexpected results with a qualified healthcare professional. For girls, use the <a href=\"https:\/\/calculatorsworld.com\/health\/girls-bmi-calculator\/\">girls BMI calculator<\/a>; for people aged 20 and older, use the <a href=\"https:\/\/calculatorsworld.com\/health\/bmi-calculator\/\">adult BMI calculator<\/a>.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><small>Reference information reviewed 29 August 2026. Do not use this calculator as a substitute for professional medical advice.<\/small><\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\" \/>\n\n\n\n<h2 class=\"wp-block-heading\">Related BMI tools<\/h2>\n\n\n\n<ul class=\"wp-block-list\"><li><a href=\"https:\/\/calculatorsworld.com\/health\/girls-bmi-calculator\/\">Girls BMI calculator<\/a><\/li>\n<li><a href=\"https:\/\/calculatorsworld.com\/health\/bmi-calculator\/\">Adult BMI calculator<\/a><\/li>\n<li><a href=\"https:\/\/calculatorsworld.com\/health\/bmi-formula\/\">BMI formula<\/a><\/li><\/ul>\n","protected":false},"excerpt":{"rendered":"<p>Calculate BMI-for-age for boys aged 5\u201319 years. Enter age, height and weight to estimate BMI and compare it with reference values for boys of the same age. Supported age range: 61\u2013228 months. Enter completed years and any additional months for the most appropriate comparison. How boys&#8217; BMI is calculated The BMI formula is the same &hellip; <\/p>\n<p class=\"link-more\"><a href=\"https:\/\/calculatorsworld.com\/health\/boys-bmi-calculator\/\" class=\"more-link\">Continue reading<span class=\"screen-reader-text\"> &#8220;Boys BMI calculator&#8221;<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":171,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"_monsterinsights_skip_tracking":false,"footnotes":""},"class_list":["post-168","page","type-page","status-publish","has-post-thumbnail","hentry"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.3 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Boys BMI Calculator: Ages 5\u201319<\/title>\n<meta name=\"description\" content=\"Calculate BMI-for-age percentile ranges for boys ages 5\u201319 using WHO 2007 reference data. 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