Free mortgage calculator widget for your website.
Give your readers a full mortgage calculator — monthly payment, interest costs and an amortization chart — without writing a line of code. Copy one snippet, paste it into your page, done.
Live demo
This is the exact widget your visitors will get — fully interactive, try it.
Copy the embed code
Paste this snippet into your HTML where the calculator should appear.
<div data-mft-calculator="mortgage-calculator"
data-lang="en" data-theme="auto">
<a href="https://myfinancetools.io/mortgage-calculator/">Mortgage Calculator</a> by <a href="https://myfinancetools.io/">MyFinanceTools</a>
</div>
<script src="https://myfinancetools.io/embed.js" async></script> How It Works
Copy the snippet
One click on the copy button — no signup, no API key.
Paste it into your site
Works in any CMS: a Custom HTML block in WordPress, an Embed block in Squarespace or Wix, or plain HTML.
Done — it adapts
The widget loads asynchronously, resizes itself to fit your layout, and follows your choice of language and theme.
Why Embed Our Calculators?
Fully Responsive
Calculators adapt to any screen size and container width.
Auto-Resizing
The widget automatically adjusts its height — no scrollbars.
5 Languages
Available in English, German, Spanish, French, and Portuguese.
Light & Dark Mode
Match your site's theme or let it follow the user's system preference.
No Signup Required
Free to use, no account or API key needed.
Privacy-Friendly
No tracking cookies or analytics in embedded widgets.
Frequently asked questions
Is the mortgage calculator widget really free?+
Yes. Embedding is completely free for any website, blog, or internal tool — no signup, no API key, no usage limits. We appreciate (but do not require) keeping the small “Powered by MyFinanceTools” link under the widget.
How do I add the mortgage calculator to my website?+
Copy the snippet above and paste it into your page where the calculator should appear: a Custom HTML block in WordPress, an Embed block in Squarespace or Wix, or directly into your HTML template. The script loads the calculator in an iframe and sizes it automatically.
Does the widget track my visitors?+
No. The embedded calculator sets no cookies and runs no ads or analytics on your visitors — your page stays as private as it was before. All calculations run in the visitor’s browser, and nothing they type is stored or transmitted.
Can I change the widget’s language or theme?+
Yes. The widget is available in English, German, Spanish, French, and Portuguese, and in light, dark, or automatic theme. Change the data-lang and data-theme attributes in the snippet, or generate a ready-made snippet in the embed configurator.
Will the widget slow my page down?+
No. The loader script is a few kilobytes and loads asynchronously, and the calculator runs in its own iframe, so it never blocks your page from rendering. It automatically resizes to fit its container — no scrollbars.
What does the mortgage calculator show my visitors?+
Visitors enter a home price, down payment, interest rate and term — optionally property tax, insurance, PMI and extra payments — and instantly see the payment they would actually make, total interest and an interactive payoff chart. Everything updates live.
Does the mortgage calculator work for my country?+
Yes. The calculator is currency-agnostic and lets visitors set their own price, rate and term, so it works for audiences in the US, UK, Germany, Switzerland, Spain, Brazil and beyond. Combined with five interface languages, it fits international sites too.
Want a different calculator?
The embed configurator lets you pick from all 21 financial calculators and preview them in every language and theme.