Free Roofing Calculator Widgets for Your Website

Free Shingle, Nails and Soffit & Fascia Cost Widgets for Contractors, Supply Stores and Blogs

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Add a free roofing calculator to your website: a contractor site, real-estate listing, lumber yard or supply-store page, or a home-improvement blog, with one copy-paste iframe or script. Six widgets are available: the roof replacement cost calculator (a 2026 installed price range from house size, pitch, roof style and material), the shingle calculator (bundles, roofing squares and material cost), the roof pitch calculator (pitch, angle, slope percentage and pitch factor from rise and run), the metal roof cost calculator (standing seam, corrugated and stone-coated steel, with tear-off), the soffit and fascia cost calculator and the roofing nails calculator. Each widget runs the same formulas as the full calculators on Smart Roofing Calculator, fits phones and desktops, loads lazily, shows no ads, loads no trackers and sets no cookies. Pick a size, a light, dark or automatic theme and your own accent colour, choose whether to show an optional Get local quotes button, copy the code into a Custom HTML block in WordPress or the embed block of Squarespace, Wix, Webflow, Shopify or Google Sites, and publish. The widgets are free for commercial and personal sites; the only condition is that the powered-by credit link under the widget stays visible.

The roof cost calculator can be embedded on any website with a single iframe. It is useful on contractor sites, real-estate listings and roofing blogs, where a visitor who can size a budget on the page is a visitor who does not leave to find one.

What the embed does

Using it well

Attribution and terms

The embed is free to use and includes a link back to this site, which is the only condition. Do not modify the embed to remove it, and do not present the estimate as a quote from your business — it is a planning figure, and saying so protects you as much as us.

Frequently asked questions

Is the embed free?

Yes. The only condition is that you keep the link back to this site that the embed includes.

Will the embed slow my page down?

It loads in its own iframe, so it does not block your page rendering and it cannot interfere with your own scripts or styles.

Does the embed collect visitor data?

No. It collects nothing from your visitors and sets no cookie on your domain.

Will an embedded calculator help my page rank?

Not on its own — search engines do not read inside an iframe. Give the section a heading and a paragraph or two of your own text around it, or the page has nothing crawlable to rank.