Event ROI calculator

How to use the calculator

Enter the total cost of the event, all in, including HST, service charges, staff time if you track it, travel and any production. Add the number of attendees and the number of qualified leads, meaning contacts who meet your own definition of a real sales opportunity, not every badge scanned. Then enter your historical close rate and average deal value from your sales team, and any direct revenue such as tickets or sponsorship. The calculator returns cost per attendee, cost per lead, expected pipeline, ROI and the number of deals needed to break even.

What the outputs mean

Cost per attendee and cost per lead let you compare this event with other channels, such as advertising or a different trade show. Expected pipeline multiplies qualified leads by close rate and deal value, which gives a forecast of revenue the event is likely to produce, not money already earned. ROI compares that expected value plus direct revenue against the cost. The break-even figure is often the most persuasive number for a sceptical finance team, because it reduces the question to how many deals the event needs to pay for itself.

Assumptions to state clearly

The model assumes your close rate and deal value apply to event leads as they do to other leads, which may not be true; event leads can be warmer or colder than average. It also treats revenue as attributable to the event, though most sales have several touchpoints. State your assumptions when you present the figures, and update them with actual results three, six and twelve months later.

• Agree the definition of a qualified lead with sales before the event.
• Use the full event cost, not just the booth or venue fee.
• Track leads in your CRM with the event as a source.
• Report non-revenue goals, such as retention or brand awareness, separately.

When to use it

Run the calculator before the event to set targets and justify the budget, then after the event with real numbers. Pair it with the post-event survey template for attendee feedback, and use the cost per guest calculator to check the cost side. The method is covered in the Academy lesson on measuring ROI and reporting, and trade show exhibitors may find the trade show budget guide useful for the cost inputs.