Free Embeddable Calculators & Widgets for Your Website
Enhance your site's user experience and engagement. Copy a short code snippet to embed responsive, beautifully designed tools customized to fit your branding.
1. Choose a Widget
2. Customize Style
3. Grab Code & Preview
<div class="guh-widget" data-tool="mortgage-calculator" data-currency="USD"></div> <script async src="https://globalutilityhub.com/embed.js"></script>
👁️ Live Widget Preview
How to Embed in 3 Simple Steps
Copy the HTML Snippet
Customize the widget above by selecting the calculator, theme, and styling colors, then click the "Copy Code" button to save it to your clipboard.
Paste into Your Page Builder / HTML Editor
Open your CMS (WordPress, Webflow, Squarespace) or HTML file editor. Paste the generated snippet into a Custom HTML block or text area where you want the widget to appear.
Publish and Test
Save and publish your page. The script will automatically load the frame inside the container and resize the container height dynamically based on user interaction.
Frequently Asked Questions
Is it completely free to embed these calculators?
Yes! Our calculators are 100% free to embed on any commercial or personal website. The only requirement is that the generated followed attribution backlinks (e.g. "Mortgage Calculator by GlobalUtilityHub") remain visible and unmodified in your DOM.
Will these widgets slow down my website load time?
No. The widgets load via an async script loader (embed.js) which executes completely after your main host document is rendered. Because they load inside a separate sandbox iframe, they do not block host rendering, do not compete for layout assets, and won't impact your Core Web Vitals.
Are the widgets responsive and mobile-friendly?
Yes. All widgets are designed mobile-first and automatically scale to fit the container width of your site (supporting fluid sizes from 300px up to 800px wide). The iframe resizes its height automatically using a ResizeObserver message interface so you never get awkward double scrollbars.
Do you track or store user data entered in the widgets?
No. In accordance with our privacy-first design, all computation is performed locally in the user's browser client-side. No user input or personal data ever leaves the browser, making the widgets completely GDPR/CCPA compliant.
How can I customize the styles of the widgets?
You can configure the theme mode (light, dark, or system-matched auto), custom currency formatting (USD, INR, EUR, etc. for financial tools), and custom primary buttons or highlight colors using the customizer controls on this page. Invalid configurations automatically fall back to standard defaults safely.