Build and copy the calculator
Set the calculator template, assumptions, branding, and optional customer-owned HTTPS link in RapidReply, then select Copy embed.
Add a Code Embed element
In the Webflow Designer, open the Add panel, place a Code Embed element where the calculator should appear, and open its code editor.
Paste, save, and publish
Paste the RapidReply iframe, save and close the embed, then publish to a staging or production domain and verify the complete widget on desktop and mobile.
Four quick checks
- Confirm the calculator fits on desktop and mobile.
- Change one builder assumption and confirm the displayed estimate updates.
- If you added a button, confirm its displayed hostname and destination are yours.
- Keep the planning-estimate disclaimer visible below the result.
Webflow requirements
Webflow says the Code Embed element requires an eligible paid Workspace or an active Site plan, and custom code is outside its direct support scope. The RapidReply iframe is far below Webflow’s 50,000-character embed limit.
Read Webflow’s Code Embed guide ↗