Title: OutageMath Runtime Calculator Author: outagemath Published: October 12, 2026 Last modified: October 12, 2026 --- Search plugins ![](https://ps.w.org/outagemath-runtime-calculator/assets/banner-772x250.png?rev =3741562) ![](https://ps.w.org/outagemath-runtime-calculator/assets/icon-256x256.png?rev=3741562) # OutageMath Runtime Calculator By [outagemath](https://profiles.wordpress.org/outagemath/) [Download](https://downloads.wordpress.org/plugin/outagemath-runtime-calculator.1.0.0.zip) * [Details](https://wordpress.org/plugins/outagemath-runtime-calculator/#description) * [Reviews](https://wordpress.org/plugins/outagemath-runtime-calculator/#reviews) * [Installation](https://wordpress.org/plugins/outagemath-runtime-calculator/#installation) * [Development](https://wordpress.org/plugins/outagemath-runtime-calculator/#developers) [Support](https://wordpress.org/support/plugin/outagemath-runtime-calculator/) ## Description If you write about camping, RVs, off-grid living or getting ready for power outages, your readers keep asking the same thing: how long will this power station run my stuff? This plugin adds a calculator that answers it, right in your post. Visitors pick a power station (more than 50 models from Anker SOLIX, BLUETTI, DJI, EcoFlow, Goal Zero and Jackery, or any battery size they type in), add their devices, and get the number of hours. It also tells them when a station can’t start something, like a fridge whose startup surge is higher than the station’s limit. The power station specs come from the manufacturers’ own pages and manuals. The appliance wattages list their sources. Runtimes allow for about 15% inverter loss. You can set which model shows first, pick light or dark colors (or let it follow the visitor’s system setting), and change the starting height. On your site the frame then resizes itself to fit, so there’s no scrollbar inside it. There’s an optional “Calculator by OutageMath” link you can show under the calculator, on your page. It’s off unless you turn it on. (Inside the calculator frame there’s always a small “by OutageMath” line and a link to open the full calculator, the same as on any embed.) No ads, no tracking, no sign-up. #### Shortcode ``` [outagemath_calculator] [outagemath_calculator model="jackery-explorer-1000-plus" theme="dark" height="900"] ``` * `model`: the model shown first. Settings > OutageMath Calculator lists every slug. * `theme`: `light` or `dark`. Leave it out to follow the visitor’s system setting. * `height`: starting height in pixels, 300 to 3000. ### External services The calculator is hosted on OutageMath (https://www.outagemath.com) and shown in an iframe from https://www.outagemath.com/embed/runtime-calculator/. It loads when someone views a page that contains the block or the shortcode, or when you edit such a page in the block editor. The visitor’s browser then requests the page from www.outagemath.com, which sends what any web request sends: IP address, browser user agent and the address of the page it’s embedded on. The URL also includes the model and colors you picked. Your WordPress server doesn’t send anything. The devices and numbers visitors enter stay in their browser and aren’t sent to OutageMath. The calculator page sets no cookies of its own and has no ads or analytics. The site is served through Cloudflare. Terms of use: https://www.outagemath.com/terms/ Privacy policy: https://www.outagemath. com/privacy/ ## Screenshots [⌊The calculator in a post.⌉⌊The calculator in a post.⌉[ The calculator in a post. [⌊The block settings in the editor.⌉⌊The block settings in the editor.⌉[ The block settings in the editor. [⌊The settings page.⌉⌊The settings page.⌉[ The settings page. ## Blocks This plugin provides 1 block. * Power Station Runtime Calculator How long will a portable power station run your devices? Visitors pick a model, add devices and see the hours. ## Installation 1. Go to Plugins > Add New, search for “OutageMath Runtime Calculator”, install it and activate it. 2. If you want, set the default model, colors and credit link under Settings > OutageMath Calculator. 3. Add the “Power Station Runtime Calculator” block to a post or page. If you use the classic editor, a widget or a page builder, paste `[outagemath_calculator]` instead. ## FAQ ### Will it slow my page down? The calculator loads lazily, when a visitor scrolls near it. On your own page the plugin adds one small script (under 1 KB) that resizes the frame. ### Does it work with the classic editor or page builders? Yes, through the shortcode. It works anywhere shortcodes do, including Elementor and Divi. ### Can visitors pick a different power station? Yes. The model you set is only the one shown first. Visitors can switch to any model or type in their own battery size. ### Where do the numbers come from? Power station specs come from the manufacturers’ product pages and manuals. Appliance wattages come from manufacturer documents, ENERGY STAR and generator makers’ wattage guides. Every model and appliance page on https://www.outagemath.com lists its sources. ### Can people use it for medical equipment? For planning, yes. Real runtimes depend on settings, temperature and battery age. Anyone who depends on powered medical equipment should check the label on their own device, talk to their supplier, and not rely on a single battery. ### Do I have to show a link to OutageMath? No. The link is off by default, and the calculator works exactly the same without it. ## Reviews There are no reviews for this plugin. ## Contributors & Developers “OutageMath Runtime Calculator” is open source software. The following people have contributed to this plugin. Contributors * [ outagemath ](https://profiles.wordpress.org/outagemath/) [Translate “OutageMath Runtime Calculator” into your language.](https://translate.wordpress.org/projects/wp-plugins/outagemath-runtime-calculator) ### Interested in development? [Browse the code](https://plugins.trac.wordpress.org/browser/outagemath-runtime-calculator/), check out the [SVN repository](https://plugins.svn.wordpress.org/outagemath-runtime-calculator/), or subscribe to the [development log](https://plugins.trac.wordpress.org/log/outagemath-runtime-calculator/) by [RSS](https://plugins.trac.wordpress.org/log/outagemath-runtime-calculator/?limit=100&mode=stop_on_copy&format=rss). ## Changelog #### 1.0.0 * First release. ## Meta * Version **1.0.0** * Last updated **18 hours ago** * Active installations **Fewer than 10** * WordPress version ** 6.3 or higher ** * Tested up to **7.1.3** * PHP version ** 7.4 or higher ** * Tags * [battery](https://wordpress.org/plugins/tags/battery/)[calculator](https://wordpress.org/plugins/tags/calculator/) * [Advanced View](https://wordpress.org/plugins/outagemath-runtime-calculator/advanced/) ## Ratings No reviews have been submitted yet. [Your review](https://wordpress.org/support/plugin/outagemath-runtime-calculator/reviews/#new-post) [See all reviews](https://wordpress.org/support/plugin/outagemath-runtime-calculator/reviews/) ## Contributors * [ outagemath ](https://profiles.wordpress.org/outagemath/) ## Support Got something to say? Need help? [View support forum](https://wordpress.org/support/plugin/outagemath-runtime-calculator/)