Adding web calculators to your Squarespace website is super easy. Our clients have done it hundreds of times.

Here are a few steps

1. Create a new page
2. Add an “Embed” section
3. Edit the new Section by clicking the pencil icon
4. In the popup, under the Code Snippet tab. Click on “Embed data. “
5. Paste your embed code there and save

Now here is the kicker.

The tools will not display in edit/preview mode, at least not out-of-the-box.

This happens because Squarespace loads your preview using another domain, not the one you registered. You will see an error in the edit/preview mode.

But your actual page will certainly work. See for yourself.
 
If you like your preview to work as well, follow these instructions. https://canadian-mortgage-app.helpshift.com/hc/en/11-web-calculators/faq/631-the-current-domain-www-is-not-assigned/

Lastly, please drag the section to give it ample horizontal space.