Cal.com supports four key embed formats to suit various needs:

1. Inline Embed: Display the calendar directly within your page layout for seamless user interaction.

2. Floating Pop-up Button: Add a persistent button that triggers the booking modal without disrupting the page layout.

3. Pop-up via Element Click: Trigger the scheduling modal from any custom element, like a button or image.

4. Email Embed: Include a pre-filled booking form link within your emails for easy and personalized scheduling.

Each format is designed to provide flexibility in how you display and interact with your scheduling system, depending on your website design and user flow.