Turn WordPress Visitors Into Leads
Install our WordPress plugin or paste a one-line embed code. Either way, you're live in under 60 seconds.
CalcStack tools are embedded on WordPress websites across every major industry. The embed process takes under 60 seconds, paste one line of code and your interactive tool is live, branded to your website, capturing qualified leads. Read the full embed guide or see pricing.
Live demo
See a Live Example
This is a real CalcStack tool. Your visitors see this exact experience.
Why CalcStack
Why CalcStack for WordPress?
Lead capture built in
Every tool can gate results behind an email form. Leads arrive with full context, every input, every result, benchmark position, and a quality score.
Industry benchmarks
Visitors see how they compare to industry averages. Benchmarks increase engagement and make leads more qualified.
White-label ready
Remove all CalcStack branding on Growth and Agency plans. Your interactive tools look like a native part of your WordPress site.
Works with any theme
The shortcode and Gutenberg block work inside any WordPress theme and page builder, Elementor, Divi, Beaver Builder, WPBakery, or the native editor.
How the WordPress Embed Works
WordPress lead generation through CalcStack works via a plugin or one-line iframe embed. Visitors interact with calculators, scorecards, or quizzes; their inputs become qualified leads with full context. Integration requires no theme edits, supports Elementor, Divi, Beaver Builder, and Gutenberg, and adds no JavaScript to your page.
The embed loads inside an isolated iframe. Your WordPress theme, plugins, and page speed remain completely unaffected. The tool communicates lead data back to CalcStack via a secure postMessage bridge, your site never handles sensitive visitor data directly.
This architecture means CalcStack works identically on shared hosting, managed WordPress hosts (WP Engine, Kinsta, Flywheel), and self-hosted WordPress installations. No server-side configuration is required. According to W3Techs CMS Usage Statistics, WordPress powers over 40% of all websites, and Kinsta's WordPress speed studies confirm async iframe embeds add no measurable impact to Core Web Vitals scores.
Shortcode & Embed Code Reference
Two ways to embed: the CalcStack shortcode (requires the plugin) or a direct iframe/script tag (works without any plugin). Both methods support lead capture, custom styling, and CRM integration.
Plugin Shortcodes
Basic shortcode
[calcstack tool="profit-margin-calculator"]With Customer ID (enables lead capture)
[calcstack tool="profit-margin-calculator" customer="your-id"]With custom height and dark theme
[calcstack tool="marketing-health-score" customer="your-id" height="800" theme="dark"]Direct Embed (No Plugin Required)
Standard iframe embed
<iframe src="https://calcstack.net/embed/profit-margin-calculator?customer=your-id" width="100%" height="600" frameborder="0"></iframe>Responsive iframe with auto-resize
<div data-calcstack-tool="profit-margin-calculator" data-customer="your-id"></div>
<script src="https://calcstack.net/embed.js"></script>Find your Customer ID in your CalcStack dashboard under Settings. Without a Customer ID, the embed runs as a demo with CalcStack branding and no lead capture.
Page Builder Compatibility
CalcStack embeds work inside every major WordPress page builder. The method varies slightly depending on which builder you use.
All methods produce the same result: an interactive tool that loads asynchronously, captures leads, and sends data to your CRM. Choose the method that matches your editor workflow.
Elementor
Drag an HTML widget onto your page. Paste the embed code or iframe tag. The tool renders in the Elementor preview and on the published page.
Divi
Add a Code module to any row. Paste the embed code inside the module. Divi renders the tool immediately in the Visual Builder.
Beaver Builder
Use the HTML module to embed the code. The tool loads inside Beaver Builder's live preview and on the published page.
WPBakery / Classic Editor
Switch to the Text tab in the Classic Editor, or use WPBakery's Raw HTML element. Paste the embed code directly.
Common Issues & Troubleshooting
Most WordPress embed issues are resolved in under a minute. Here are the three most common problems and their fixes.
Tool shows as blank or doesn't render
Cause: A security plugin (Wordfence, Sucuri, iThemes Security) is blocking iframe content, or your theme strips HTML from content blocks.
Fix: Whitelist calcstack.net in your security plugin's iframe allowlist. If using the Classic Editor, ensure you are pasting the code in the "Text" tab, not the "Visual" tab, the Visual tab strips iframe tags. In Gutenberg, use a Custom HTML block, not a Paragraph block.
Tool loads but appears too short or cut off
Cause: The iframe has a fixed height that is shorter than the tool content. This happens when using the manual iframe embed without the auto-resize script.
Fix: Use the script embed tag instead of a raw iframe, it automatically adjusts height to fit the content. If you prefer the iframe method, set height="800" or higher to ensure all content is visible. The CalcStack plugin and shortcode handle this automatically.
Leads are not appearing in the CalcStack dashboard
Cause: The embed is running without a Customer ID, or the Customer ID is incorrect. Without a valid Customer ID, the tool runs in demo mode with no lead capture.
Fix: Check your shortcode includes customer="your-id" or your iframe URL includes ?customer=your-id. Find your Customer ID in CalcStack Dashboard → Settings. Verify your plan includes lead capture (Starter and above).
Popular Lead Generation Tools for WordPress
These are the most-embedded tools on WordPress sites. Each one captures qualified leads with industry-specific data. Browse all tools on the resources page.
ROI Calculator
Visitors calculate their ROI, you capture their financial data as a qualified lead.
Marketing Health Score
A 10-question assessment that scores visitors' marketing and captures every weakness as lead data.
Hire vs Outsource
A decision engine that captures visitors' staffing needs, budget, and hiring intent.
Benchmark Your SaaS
Visitors compare their SaaS metrics across 6 dimensions, you capture their complete performance profile.
Landing Page Grader
Visitors paste their landing page copy and get a grade, you capture their content and improvement needs.
Solar Savings Calculator
Solar installers embed this, visitors enter energy usage, you capture their savings potential as a lead.
Turn Your WordPress Visitors Into Qualified Leads
Start with the Free plan, no credit card required. Embed interactive tools and start capturing leads today.