65+ free, responsive calculator widgets for finance blogs, newsletters, real estate sites, and content partners. Copy one line of HTML — we'll handle the rest.
Drop the markup wherever you want the calculator to appear. The script lazy-loads on scroll, respects your visitor's motion preferences, and never tracks or sets cookies.
<div class="calchubb-embed"
data-calc="mortgage-payment"
data-height="600"
data-theme="light"></div>
<script src="https://calchubb.com/embed.js"></script>Monthly payment, interest paid, and amortization — all in one widget.
Project retirement savings with employer match, returns, and contribution limits.
Estimate federal income tax with 2026 brackets and deductions.
Show readers the power of compounding with adjustable contributions.
Drop a mortgage payment widget into every listing — pre-filled with the home price.
Pair an explainer article with a live calculator. Readers stay on your page, not someone else's.
Link directly to a configured widget. Subscribers run a scenario with one click.
Pick a tool, configure the theme and state, copy the snippet. Free for any site, no attribution required.
Open the widget builder