Getting the code
Log in to your uCalc account and open the page with the list of projects. Click on the menu and select Get code:
A window with HTML code will appear. Copy the code from it:
Adding the calculator to the page
Go to managing your Webflow site. Click on the Add Elements button (1) and drag the Embed widget to the desired place (2):
Paste the calculator code you copied before (1) and click Save (2):
Your calculator is ready!