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 Weebly site. Choose the place where you’d like to add a calculator and drag the Embed Code widget there:
Click on the widget and choose Edit Custom HTML:
Paste the calculator code you copied before:
Your calculator is ready!