WidgetCalc — Pricing, Quote & Cost Calculators for Leads

Most WordPress calculator plugins either need you to write formulas in code, or lock lead capture behind an expensive plan. WidgetCalc is built the other way round: build a pricing calculator, quote calculator or cost estimator in a point-and-click editor at widgetcalc.com, publish it, and this plugin drops it onto any page with a shortcode or block — free plan included, no credit card. Whatever you're building it for — a pricing calculator that quotes a price from a visitor's answers, a quote form for a service business, a cost estimator for a project, or an ROI/savings calculator for a landing page — a WidgetCalc calculator asks a visitor a few questions (spend, team size, hours spent per week — whatever your calculator needs), shows them a result worth sharing ("You could save €4,200/year" or "Your estimated quote: €1,250"), and captures their email before or after that result so every calculation becomes a lead in your dashboard, not just a number on the page. Why WidgetCalc instead of a generic form plugin or a hand-coded script?

• No formulas to write. Build the calculator at widgetcalc.com with a visual editor — fields, a formula built by clicking, and a live preview — then paste one key here. Nothing to code on the WordPress side, ever.
• The lead capture is built in. The calculator is the lead form; you don't wire up a separate Contact Form 7 or Gravity Forms integration to get the email address.
• A free plan that actually works. One calculator, unlimited visitors, no time limit — not a 14-day trial.
• Light and lazy. The calculator loads in an iframe after the rest of your page, so it never blocks or slows down your WordPress site's own load.

This plugin puts that calculator on a WordPress site with no code:

• A [widgetcalc] shortcode you can drop into any page, post or widget area.
• A WidgetCalc block for the block editor (Gutenberg), with a field for the calculator key.
• A site-wide default calculator key under Settings → WidgetCalc, so a single-calculator site needs no attributes at all.

Build your calculator at widgetcalc.com first (a free plan covers one calculator), copy its key from the publish step, and paste it here. Usage

1. Create and publish a calculator at widgetcalc.com.
2. Copy the calculator key shown on the publish step (the part of the embed snippet between /embed/ and .js).
3. Either:
4. Go to Settings → WidgetCalc and paste it as your default key, then add the WidgetCalc block or [widgetcalc] shortcode anywhere with no attributes, or
5. Use [widgetcalc key="your-calculator-key"] to place a specific calculator, independent of the default.

Does this need a paid WidgetCalc plan? No. The plugin works with WidgetCalc's free plan (one calculator, WidgetCalc badge shown). Paid plans add more calculators, remove the badge and unlock lead routing. I don't want to build the calculator myself — can WidgetCalc do it? Yes. WidgetCalc also sells a done-for-you service: send your pricing sheet or formula and they build, publish and host the calculator for you, for a fixed one-time setup fee plus monthly hosting. It's a separate paid service from this free plugin, not a requirement to use it — see the built-for-you offer and its Terms of Service. A link to it is also on this plugin's own Settings → WidgetCalc page.

1.0.5

• Add a FAQ entry and a settings-page link for the "built-for-you" done-for-you service (send your pricing sheet, WidgetCalc builds and hosts the calculator) — a separate paid service from this free plugin, linked only from the plugin's own settings screen, not from any front-facing page it renders.

1.0.4

• Retitle the listing and rewrite the tags, description and two new FAQ entries around the words a WordPress site owner actually searches for (pricing calculator, quote form, cost estimator), not just "ROI widget" — the plugin always did all of these, the listing just didn't say so.

1.0.3

• Add the directory listing's first screenshots: a live calculator, the builder with its live preview, and the embed snippet — so a visitor can see the product work before installing.

1.0.2

• Rewrite the directory listing as a landing page: a sharper title, a "why WidgetCalc" section in the description, and two new FAQ entries (is it really free, do I need to code) answering the two questions a visitor to this listing actually has.
• The admin settings screen now shows a plain "Build a free calculator" button when no key is set yet, linking through a counted redirect so we can see whether an install turns into a signup.

1.0.1

• Fix: enqueue the embed loader via wp_enqueue_script instead of printing a raw tag.
• Document the WidgetCalc external service (data sent, ToS, privacy) in this readme.
• Remove an unsupported "fastest" claim from the description; add rocksoftware as a listed contributor.

1.0.0

• First release: shortcode, block and a site-wide default key.