Free Solar Loan Calculator Widget
Add the Solar Loan Calculator to your own website with one copy-paste snippet — no signup, no API key, and nothing to maintain. It's the same calculator that runs on this site: personal finance writers, credit counselors, and lending comparison sites use embeds like this to show readers what a loan actually costs per month while the article that explains it is still on screen.
Price a solar loan against your current electric bill, compare interest across 10 to 25 year terms, and model the system with or without a tax credit. The widget runs entirely in your visitor's browser, so nobody's inputs are sent to us or to you, and it never shows ads or asks for an email address.
Calculator by Justin Kulhawick, Founder · last reviewed 2026-08-02
Get the embed code
Embed type
Recommended: the widget grows and shrinks to fit its content, so there are never inner scrollbars.
Your embed code
<script src="https://quickloancalculators.com/embed.js" data-qlc="solar-loan-calculator" async></script>Live preview
This is the exact widget your visitors will see.
Want the full experience? The complete Solar Loan Calculator on our site adds the methodology behind the math, an FAQ, and where the loan type supports it, a full amortization schedule — everything the compact widget leaves out.
How to install the widget on your platform
The embed works anywhere you can paste HTML. The auto-resizing script is the best choice on most platforms; a few site builders strip third-party script tags, and for those the plain iframe does the same job at a fixed height.
WordPress
- Edit the page or post where the calculator should appear.
- Add a "Custom HTML" block (in the block editor, type /html).
- Paste the embed snippet into the block and update the page.
Squarespace
- Edit the page and click an insert point.
- Choose the "Code" block (Markdown/Code section).
- Paste the snippet, keep the mode on HTML, and save.
Wix
- In the editor, click Add Elements → Embed Code → Embed HTML.
- Choose "Code" and paste the snippet.
- Drag the element where you want it and publish. If the script version doesn't render in Wix's sandboxed element, use the plain iframe snippet instead.
Webflow
- Drag an "Embed" element from the Add panel onto your page.
- Paste the snippet into the code editor and save.
- Publish the site — embeds render on the published site, not in the designer preview.
Google Sites
- Click Insert → Embed → "Embed code".
- Paste the plain iframe snippet (Google Sites strips script tags) and click Next, then Insert.
Plain HTML
- Open the HTML file where the calculator should appear.
- Paste the snippet where you want the widget rendered — no other markup or CSS needed.
Solar Loan Calculator widget FAQs
Yes. There is no signup, no API key, no usage limit, and no paid tier. The only thing the widget adds is a small "Powered by Quick Loan Calculators" link under the results, which tells your visitors where the math comes from.
Yes. The embed loads the calculator from our servers, so when we improve the formula, fix a bug, or update assumptions, your site gets the new version immediately without you touching anything.
The recommended script embed automatically resizes its height to fit the calculator, and its width fills whatever container you place it in. Use the customizer above to cap the width or set a fixed iframe height, and the snippet updates as you change the options.
It works on any platform that lets you paste HTML: a Custom HTML block in WordPress, a Code block in Squarespace, an Embed Code element in Wix, a code embed in Webflow, or a plain HTML page. Platform-by-platform steps are on this page.
No. The script loads asynchronously and the iframe is lazy-loaded, so it never blocks your page from rendering. All calculation happens in the visitor's browser — the embed makes no further network requests after it loads.
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