The percentage of registered attendees who do not actually attend the event. Industry average: 30-50% for free events.
The no-show rate is the percentage of registered attendees who never arrive at your event. It is calculated as: (registrations − check-ins) ÷ registrations × 100. For free events, industry benchmarks range from 30 to 50 percent; paid events typically see 5 to 15 percent.
Every no-show is wasted budget: catering, badges, seating, and staffing are planned per registered head. A high no-show rate also distorts your event ROI and frustrates sponsors who paid for audience reach. Knowing your expected no-show rate lets you overbook intelligently — just like airlines do.
The most effective levers are: charging even a small ticket fee (commitment effect), sending reminder emails 24 hours and 1 hour before the event, making the agenda concrete and personal, and offering easy calendar integration at registration.
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