WordPress plugin

Embed any calculator on a WordPress site with no code at all.

The ExactCalcs plugin gives WordPress the same 49 calculators as the JS embed, with no code to write — a Gutenberg block, an Elementor widget, and a shortcode, all backed by the same API key and POST /v1/widget/verify flow every other embed uses.

Download the plugin (.zip)

Installing it

  1. In your WordPress admin, go to Plugins → Add New → Upload Plugin and upload the zip above, then activate it.
  2. Go to Settings → ExactCalcs and paste in an API key from your dashboard. Saving it here also registers your site's domain against that key — required, since a key only accepts requests from domains you've explicitly registered.
  3. Add a calculator to any page or post using whichever of the three methods below fits your editor.

Three ways to place one

  • Gutenberg block — search "ExactCalcs" in the block inserter, pick a calculator from the dropdown.
  • Elementor widget — drag "ExactCalcs Calculator" from the widget panel, pick a calculator.
  • Shortcode — works anywhere shortcodes render, including the Classic Editor and page builders without dedicated ExactCalcs support:
[exactcalcs id="bmi"]

The id is any calculator ID visible in the block/Elementor dropdown — see GET /v1/calculators for the full list.

Performance

The calculator script only loads on pages that actually contain a block, widget, or shortcode instance — pages with no calculator on them are unaffected.