Seminar show rate calculator

How each number is counted

Every figure above is division or subtraction on the counts you typed. Nothing is estimated, and nothing is compared to anyone else's room.

Show rate

attended ÷ registered. Registered guests who checked in divided by unique form registrations. Include later cancellations in this gross registration denominator. Walk-ins and unregistered plus-ones are outside both counts.

Registered guests who did not attend

registered − attended. The gap. These people raised a hand and did not come.

Confirmation rate

confirmed ÷ registered. How many registrants said yes to a confirmation text or call.

Attended ÷ confirmed

attended ÷ confirmed. This ratio assumes every registered attendee was also confirmed. It cannot establish RSVP follow-through from totals alone, even when the answer is below 100%. A verified follow-through rate needs the number of confirmed guests who attended, divided by the confirmed cohort. Match the individual records before using that interpretation.

Registered-attendee seat share

attended ÷ seats. The seat share occupied by registered attendees. For total room occupancy, count every person present, including walk-ins and plus-ones, separately.

Ad cost per registered attendee

ad spend ÷ attended. Your ad spend divided by registered attendees. This excludes venue, meals, staff, walk-ins, and unregistered plus-ones. It is not total event cost per person, cost per booked consultation, or cost per patient.

Missing counts and zero denominators

A blank field means unknown and contributes no metric. A typed zero is measured zero. Registered and seats must be at least one when supplied. Zero attendees produces a 0% show rate when registrations are positive, but no cost per attendee; zero confirmed produces no attendance-to-confirmation ratio. The tool withholds undefined division instead of turning it into zero.

The product dashboard's primary operational show rate uses active registrations, excluding cancellations. This free calculator uses gross registrations. Compare the same definition across events. Registered, confirmed, attended, booked, and patient are separate statuses; this tool calculates no booking or patient conversion rate.

A worked example

Illustrative numbers from Seminar Engine's demo. Synthetic data, not a client result. 42 registered, 35 confirmed, 32 attended, 50 seats, $2,272 of ad spend.

42 registered. 32 showed up. Where did the other 10 go? That gap is the number to work on.

Why show rate definitions differ

Two practices can quote a show rate and mean different things. The top of the fraction changes: checked in at the door, or said they were coming, or counted at any point in the night. The bottom changes: every form fill, only the confirmed, or only the seats.

Some count walk-ins. Some count a spouse who came with a registered guest. Some remove duplicate sign-ups first and some do not. A rate you hear on a call tells you little until you know which of those it used.

This calculator counts attended over registered. Attended means checked in at the door, taken from the check-in list and not from memory. Registered means unique people who completed the form. Walk-ins who never registered are in neither number. Pick your definitions, write them down, and keep them the same every room.

What it does not tell you

It does not tell you whether a number is good. Show rate moves with the topic, the town, the day, and the gap between registration and the room, so an average from someone else's seminar says little about yours. Compare your own rooms to each other.

Review what happens between registration and arrival: confirmations, unanswered questions, and reminders. See why seminar registrants don't show up, and the show rate guide for the reminder cadence. Check the confirmation handoffand reminder details before the room; use the attendee and no-show follow-up guide after verified check-in.