Why embed instead of linking?
A link sends your reader away. An embedded calculator lets them get their answer without leaving your page — which is a better experience for them and keeps them on your site longer. These are the same calculators that live on TidyCalcs, just sized to drop into a sidebar or inside a post.
They're free to use, there's no signup, no iframe ads, and they don't share any data with us beyond standard page analytics — every calculation happens entirely in the visitor's browser.
1. Mortgage Payment Calculator
2. Debt Payoff Calculator
The only ask
Each widget includes a small "Calculator by TidyCalcs" credit line underneath the results, linking back to the full calculator page. Please leave it in place — that's the only thing that makes this worth offering for free. Beyond that, style your page around it however you like; each widget's background is transparent and adapts to light or dark surroundings.
A few practical notes
- Width: each widget caps out at 480px wide and centers itself, so it works well in a sidebar, a content column, or a dedicated "tools" page.
- Height: the heights above comfortably fit each calculator plus a calculated result. If your layout clips the bottom, add 60-80px.
- Mobile: set the iframe's own width to 100% (as in the snippets above) and it will shrink to fit narrow screens.
- Updates: each widget is served live from TidyCalcs, so if we improve it, your embed updates automatically — nothing to re-copy.
Want a different calculator embedded?
Mortgage and debt payoff are the two packaged as standalone widgets so far. If a BMI, auto loan, or other TidyCalcs calculator would be useful on your site, let us know — happy to consider building one next.