Roofing Calculator Widget

Roofing calculator widget you can add to any website for free. Copy the code below and your visitors get a working roof pitch calculator with angle, percent slope and rafter length.

Free to use, no sign-up. Updated 2026-10-16.

Embed code

Copy and paste this into your page.

Live preview

Who it is for

  • Roofing contractors who want visitors to stay longer and call.
  • Builders, lumber yards and home blogs.
  • Teachers and trade schools explaining roof geometry.

How to add it

  1. Copy the embed code.
  2. Paste it into your page as HTML. In WordPress use a Custom HTML block.
  3. Publish. The calculator resizes to fit your column.

Want a pro to confirm these numbers?

Numbers look right? A licensed roofer can measure on site and give you an exact price.

✓ Free estimates✓ Licensed and insured roofers✓ No obligation

Terms

Free for any website. Keep the small credit link under the calculator. Need a version with your colors or logo? Email us from the contact page.

Sources and further reading

Frequently asked questions

Is the roofing calculator widget free?

Yes. Copy the code, paste it and keep the credit link.

Does it work in WordPress, Wix and Squarespace?

Yes. Any builder that accepts custom HTML or an iframe.

Will it slow down my site?

No. It loads inside a lightweight iframe with no tracking.

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