GuideMarketing and sales

Event KPIs: eight metrics and how to calculate event ROI

Events are touchpoints in your marketing and sales funnel. If you don’t measure them, contacts stay anonymous, leads stay unqualified and the budget has no case behind it.

Reading time
6 min
Updated
October 26, 2026
Author
AirLST editorial team
For
Event, field and demand generation marketers, marketing ops
The short answer

Event KPIs measure an event in three phases: reach and registrations before it, attendance on the day, and satisfaction, leads and pipeline afterwards. For marketing and sales they only become meaningful once invitation, registration and check-in are tied to a contact in your CRM; that is also what makes event ROI calculable.

The key event KPIs with formulas

The list follows the life of an event. Not every metric fits every event: a customer event is judged on leads and pipeline, an employee event more on attendance and satisfaction.

Event KPIs before, during and after the event
KPIFormulaWhat it tells you
Registration rateregistrations ÷ invitations sentwhether topic, date and invitation land
No-show rate(registrations − check-ins) ÷ registrationshow firm the RSVPs are
Attendancecheck-ins per event and guest groupwho actually showed up, not just who said yes
Satisfactionpost-event survey result, for example Net Promoter Score (NPS)whether the format is worth repeating
Leads per eventnew or qualified contacts from the eventcontribution to the marketing funnel
Pipeline contributionvalue of opportunities whose contacts attended the eventimpact on sales
Cost per attendeeevent cost ÷ check-insefficiency of the format
Event ROI(attributable revenue − event cost) ÷ event costreturn on the event

Registration rate, no-show rate and attendance per guest group are covered in event analytics and reporting.

How to calculate event ROI

When budgets are tight, events have to show what they return. Leadership asks three questions:

  • Which customer contacts did the event generate?
  • How many of them became opportunities?
  • What did the event add to the pipeline?

The ROI formula is simple; attribution is not. Many B2B teams therefore report two numbers: sourced pipeline, opportunities created from event contacts, and influenced pipeline, open opportunities where a contact attended. Define which one counts before the event, and count the event cost fully, including venue, travel, staff time and tools. Both numbers depend on event data flowing into the CRM automatically.

Why the CRM connection matters

AirLST connects event data with your CRM: connectors for Salesforce and HubSpot are ready to use, and Microsoft Dynamics can be connected. Every registration and every check-in belongs to a contact that sales can work with. That gives you one continuous data path:

  1. 01Invitation

    The contact is invited from the CRM.

  2. 02Registration

    The form captures interests and session choices.

  3. 03Check-in

    Attendance is recorded, not just the RSVP.

  4. 04Lead and opportunity

    Sales follows up with context.

Sales gets the context for the conversation: which topics the guest cared about, whether they actually came and which invitation they responded to. See the Salesforce and HubSpot integrations.

Metrics that belong together

What matters is not how many numbers you collect but how they connect. Only when event metrics sit next to marketing and sales metrics can you see which formats work.

Event metrics in context
PairingWhat it tells you
Attendance and pipeline valuewhich events contribute most to revenue
Engagement and lead qualitywhich formats actually move deals
Satisfaction and repeat attendancehow strongly events retain customers

The event side of this comes from event reporting with registration and no-show rate and from the post-event survey; the sales side lives in the CRM.

Setting up event measurement

Events are shifting from a communications discipline to a performance discipline: they become measurable and can be tied to revenue. Pick two or three KPIs per event before you send the first invitation, agree with sales on how pipeline is attributed, and keep every event on the same data model so results compare over time. How an event management software keeps that data across all events of an organization is shown on the overview page.

How it works in AirLST

Event KPIs in AirLST

Registration and no-show rate, check-ins per guest group and survey results come from the same guest record and flow into your CRM through the connectors.

  • Event reporting with no-show rate
  • Post-event surveys, including an NPS scale
  • CRM connectors for Salesforce and HubSpot
See event analytics
FAQ

Event KPIs: frequently asked questions

What are event KPIs?

Event KPIs are the metrics you use to judge whether an event worked: reach and registrations before it, attendance on the day, and satisfaction, leads and pipeline afterwards. Which ones matter depends on the goal of the event.

How do you calculate event ROI?

Event ROI = (revenue attributable to the event minus event cost) divided by event cost. The formula is simple; attribution is the hard part. It only works when invitation, registration and check-in sit on the contact record in your CRM and later opportunities can be traced back to the event.

Which KPIs matter most for B2B events?

Beyond registration and no-show rate, the metrics that connect to sales: qualified leads per event, opportunities with event attendance, their pipeline value and the cost per attendee. Satisfaction from the post-event survey tells you whether the format is worth repeating.

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