Put a Free Calculator on Your Site

A mortgage calculator on your listings page. A paycheck calculator in your salary guide. A compound-interest calculator under your investing post. One copy-paste iframe — accurate, fast, themed to match your site, and free.

Build your embed

<iframe src="https://tallivo.com/embed/mortgage-calculator?ref=embed" width="100%" height="760" style="border:0" loading="lazy" title="Mortgage Calculator by Tallivo"></iframe>

Live preview

Pre-fill any inputs by adding the calculator's own share-link parameters to the src — e.g. ?ref=embed&price=500000&rate=6.25. Copy a link from any calculator's "Copy link" button and move its query onto the embed URL.

Guides by what you do

The same widgets, with the placements and the questions that actually come up for your kind of site.

for real-estate agents and mortgage brokersMortgage Calculator Widget for Real Estate Sites for HR teams, recruiters and career sitesPaycheck Calculator Widget for HR and Career Sites for teachers, librarians and financial-literacy programsCompound Interest Widget for Classrooms and Libraries for accountants, bookkeepers and tax bloggersTax Calculator Widgets for Accounting and Tax Sites

How it works

1. Pick a calculator and theme above, copy the snippet.
2. Paste it into your page's HTML (any CMS that allows an iframe: WordPress, Ghost, Squarespace, Webflow).
3. Optional: pre-fill the inputs with a share link's parameters so readers start from your example.

Every embed carries a small "Powered by Tallivo" credit under the calculator — that link is the price of free. The math is the same audited engine as the main site: 2026 federal tax data cited to IRS and SSA primary sources, unit-tested against hand-computed values.

Common questions

Is embedding really free?

Yes. Every embed is free for any site, commercial or personal. The only requirement is the small “Powered by Tallivo” credit link that renders under the calculator — that's the whole deal.

Can I pre-fill the calculator for my audience?

Yes. Every calculator's state lives in its URL. Open the tool, set the inputs you want, press “Copy link”, and append that query string to your embed src — your readers start from your numbers.

Will it slow my page down or track my visitors?

The snippet is a single lazy-loaded iframe — nothing loads until it scrolls into view, and no scripts are injected into your page. Inside the frame, financial inputs never leave the visitor's browser.

Do the numbers stay current?

Embeds run the exact same engine as tallivo.com — federal tax year 2026 data cited to IRS and SSA sources, updated when the law changes. You never have to touch the snippet.

Embeds are provided as-is for informational use; the page-level disclaimers of each tool apply. We may update calculators and data at any time — that's the point.