Title: Global Body Mass Index Calculator Author: Andreas Ostheimer Published: September 19, 2012 Last modified: June 10, 2026 --- Search plugins ![](https://ps.w.org/global-body-mass-index-calculator/assets/banner-772x250.png? rev=3567508) ![](https://ps.w.org/global-body-mass-index-calculator/assets/icon.svg?rev=3567508) # Global Body Mass Index Calculator By [Andreas Ostheimer](https://profiles.wordpress.org/helpstring/) [Download](https://downloads.wordpress.org/plugin/global-body-mass-index-calculator.1.3.zip) * [Details](https://wordpress.org/plugins/global-body-mass-index-calculator/#description) * [Reviews](https://wordpress.org/plugins/global-body-mass-index-calculator/#reviews) * [Installation](https://wordpress.org/plugins/global-body-mass-index-calculator/#installation) * [Development](https://wordpress.org/plugins/global-body-mass-index-calculator/#developers) [Support](https://wordpress.org/support/plugin/global-body-mass-index-calculator/) ## Description Global Body Mass Index Calculator adds a clean, responsive Body Mass Index calculator to your WordPress site. Visitors can work out the BMI for an adult or a child, switch between imperial and metric units, and see a clear, plain-language result — all without leaving your page. Drop it anywhere with the `[gbmicalc]` shortcode or the “BMI Calculator” widget/ block. **Features** * Separate calculators for adults and children, on two tabs. * Imperial (feet, inches, pounds) or metric (centimetres, kilograms) units. * Plain-language result with the weight-status category — and, for children, the BMI-for-age percentile. * Colour-customisable (card, text, tabs and button) through the built-in WordPress colour picker, with an adjustable size. * Responsive layout that adapts from desktop to mobile. * Works both as a shortcode and as a widget/block. * Translation-ready, with bundled translations for the 24 official languages of the European Union. * Accessible markup: labelled fields, results announced to screen readers, keyboard- friendly tabs. **How the categories are determined** * Adults: the standard WHO BMI ranges (underweight, normal, overweight, obese). * Children and teens (2–20 years): the BMI is interpreted against CDC BMI-for-age percentiles. **Disclaimer** This plugin is provided for general information only and is not medical advice. BMI is a screening tool, not a diagnosis, and it does not account for muscle mass, body composition, pregnancy or other factors. Always consult a qualified healthcare professional about your health. **Links** [Demo](https://www.ostheimer.at/wordpress-plugins/global-body-mass-index/) · [More plugins by Ostheimer](https://www.ostheimer.at/leistungen-preise/wordpress/wordpress-plugins/) ## Screenshots [⌊Adult calculator with a result, on the front end.⌉⌊Adult calculator with a result, on the front end.⌉[ Adult calculator with a result, on the front end. [⌊The child calculator tab.⌉⌊The child calculator tab.⌉[ The child calculator tab. [⌊The calculator on a narrow (mobile) screen.⌉⌊The calculator on a narrow (mobile) screen.⌉[ The calculator on a narrow (mobile) screen. [⌊The settings page: mode, size and colours.⌉⌊The settings page: mode, size and colours.⌉[ The settings page: mode, size and colours. [⌊The calculator in German — one of the 24 bundled EU languages.⌉⌊The calculator in German — one of the 24 bundled EU languages.⌉[ The calculator in German — one of the 24 bundled EU languages. ## Installation 1. Install the plugin from the Plugins screen in WordPress, or upload the `global- body-mass-index-calculator` folder to `/wp-content/plugins/`. 2. Activate the plugin through the ‘Plugins’ menu. 3. Add the `[gbmicalc]` shortcode to a post or page, or add the “BMI Calculator” widget/ block to a widget area. 4. Optionally adjust the defaults under Settings BMI Calculator. ## FAQ ### How do I add the calculator to a page? Insert the `[gbmicalc]` shortcode into any post or page, or add the “BMI Calculator” widget/block to a widget area. ### Can I switch between imperial and metric units? Yes. Choose Standard (feet, inches, pounds) or Metric (centimetres, kilograms) on the settings page, or per widget. ### How accurate is the child calculator? For children and teens aged 2–20, the BMI is interpreted using the CDC BMI-for-age percentile method, which is the standard approach for that age group. It is a screening indicator, not a diagnosis. ### Can I change the colours and size? Yes. The settings page and each widget expose colour pickers (background gradient, text, button, and the active/inactive tabs) and width/height fields. ### Does it work in the block editor and block themes? Yes. Use the shortcode in a Shortcode block, or add the widget through the block- based widgets screen. It has been tested with block themes. ### Is it available in my language? The plugin ships with translations for all 24 official EU languages and is fully translation-ready; you can also translate it at translate.wordpress.org. The bundled translations are machine-assisted starting points and native-speaker contributions are very welcome. ## Reviews ![](https://secure.gravatar.com/avatar/7f1b59f1e7d3e0f9e733fe08dd97ab329a354333e9afe78a3262d502297f588b? s=60&d=retro&r=g) ### 󠀁[very good development](https://wordpress.org/support/topic/very-good-development/)󠁿 [andrebraselmann](https://profiles.wordpress.org/andrebraselmann/) October 31, 2017 I use wordpress 4.8.2 and the plugin works great. even if it is 5 years old, it fulfills its purpose. [ Read all 3 reviews ](https://wordpress.org/support/plugin/global-body-mass-index-calculator/reviews/) ## Contributors & Developers “Global Body Mass Index Calculator” is open source software. The following people have contributed to this plugin. Contributors * [ Andreas Ostheimer ](https://profiles.wordpress.org/helpstring/) [Translate “Global Body Mass Index Calculator” into your language.](https://translate.wordpress.org/projects/wp-plugins/global-body-mass-index-calculator) ### Interested in development? [Browse the code](https://plugins.trac.wordpress.org/browser/global-body-mass-index-calculator/), check out the [SVN repository](https://plugins.svn.wordpress.org/global-body-mass-index-calculator/), or subscribe to the [development log](https://plugins.trac.wordpress.org/log/global-body-mass-index-calculator/) by [RSS](https://plugins.trac.wordpress.org/log/global-body-mass-index-calculator/?limit=100&mode=stop_on_copy&format=rss). ## Changelog #### 1.3 * Redesigned the front end: modern, mobile-responsive layout, clearer active/inactive tabs, a single heading, accessible labelled fields and announced results. * Security: fixed a stored Cross-Site Scripting (XSS) vulnerability in the `[gbmicalc]` shortcode and widget (CVE-2026-8883); all attributes and saved options are now whitelisted, sanitised and escaped on output. * Security: the settings page and widget now use the WordPress Settings API and WP_Widget, with nonce and capability checks. * Fixed the child weight-status logic (the overweight/obese categories were unreachable) and added input validation so blank, zero or negative entries no longer produce a misleading result. * Result sentences are now self-contained, properly translatable templates. * Replaced the legacy widget with the modern WP_Widget API; replaced WP_PLUGIN_URL and direct script/style tags with proper enqueuing; replaced the bundled colour picker with the built-in WordPress colour picker; removed bundled copies of jQuery. * Fixed the text domain to match the plugin slug and added bundled translations for all 24 official languages of the European Union. * Tested up to WordPress 7.0. #### 1.2 * JS bugs fix #### 1.1 * Tested up to WordPress 5.1 #### 1.0.7.0 * Tested up to WordPress 3.5 * Translation fixed #### 1.0.6.0 * Critical error fixed #### 1.0.5.0 * Fixed many bugs #### 1.0.1.0 * Initial Release ## Meta * Version **1.3** * Last updated **2 months ago** * Active installations **30+** * WordPress version ** 5.7 or higher ** * Tested up to **7.0.2** * PHP version ** 7.2 or higher ** * Tags * [bmi](https://wordpress.org/plugins/tags/bmi/)[body mass index](https://wordpress.org/plugins/tags/body-mass-index/) [calculator](https://wordpress.org/plugins/tags/calculator/)[fitness](https://wordpress.org/plugins/tags/fitness/) [health](https://wordpress.org/plugins/tags/health/) * [Advanced View](https://wordpress.org/plugins/global-body-mass-index-calculator/advanced/) ## Ratings 3 out of 5 stars. * [ 1 5-star review ](https://wordpress.org/support/plugin/global-body-mass-index-calculator/reviews/?filter=5) * [ 0 4-star reviews ](https://wordpress.org/support/plugin/global-body-mass-index-calculator/reviews/?filter=4) * [ 1 3-star review ](https://wordpress.org/support/plugin/global-body-mass-index-calculator/reviews/?filter=3) * [ 0 2-star reviews ](https://wordpress.org/support/plugin/global-body-mass-index-calculator/reviews/?filter=2) * [ 1 1-star review ](https://wordpress.org/support/plugin/global-body-mass-index-calculator/reviews/?filter=1) [Your review](https://wordpress.org/support/plugin/global-body-mass-index-calculator/reviews/#new-post) [See all reviews](https://wordpress.org/support/plugin/global-body-mass-index-calculator/reviews/) ## Contributors * [ Andreas Ostheimer ](https://profiles.wordpress.org/helpstring/) ## Support Got something to say? Need help? [View support forum](https://wordpress.org/support/plugin/global-body-mass-index-calculator/)