Free tool

How many should you invite?

A free listing costs a guest nothing to ignore. Plan with your own no-show rate instead of guessing.

Invite this many
Expected arrivals
Chance of going over capacity

No sign-up, no email, nothing stored — the maths runs in your browser.

Where these numbers come from: Cutting the no-show rate on a guest list

Get started today

Ready to turn your guest list
into a marketing engine?

Join hundreds of event operators who use EventSync to know their crowd, build their audience, and fill their events — every time.