Event ROI calculator
Work out what an event is actually worth. Direct sales, pipeline and transactions are calculated separately, so you can show how the number was built when someone asks. Four event types, each with its own questions, because a conference, a trade show, a pop-up and a sponsorship create value in different ways.
- 40% of organisers still struggle to prove event ROI
- 3 to 5× pipeline-to-cost target for field marketing
- 30 to 50% the share of true event cost teams leave out
Built on the Event ROI Methodology, with every formula published on this page. Nothing is counted twice, and financial return is kept separate from reach, media value and brand.
Six groups of inputs
Each group opens with the numbers most people already have. Where a finer figure exists, open the detail and the tool will use it. Every field says where to find the number. Every starting value is a published 2026 benchmark for the format you picked, so replace them with your own.
Total programme value
Financial return above is direct profit plus pipeline profit against cost. The components below add the value that sits outside that figure. Direct profit is measured. Pipeline profit is probability weighted and window adjusted. Data asset value is cost avoided. Contributed media is contracted at a rate card. Media value is an advertising value equivalent, and you can take it out of the total in group 05.
What would have made the biggest difference
Every change below is modelled on the figures you entered, one at a time, with everything else held still. The list is ranked by what each one is worth in profit, so the top row is where to spend your effort next time.
Scroll the table sideways to see every column.
What your own numbers already show
These are findings rather than scenarios. Each one is read straight from what you entered, and each names something to do about it.
Cost per lead benchmark
Published cost-per-lead tables for paid search, paid social and outbound do not trace back to a primary source, so this tool does not print them. One figure does trace, and it is the one below.
- All-in exhibitor cost per lead, USD 112 to 186About AED 411 to 683 at the pegged rate of 3.6725. Median all-in spend was USD 32,400 per show in 2025, about AED 119,000, up 14% on 2022. Source: ShowHero, State of Trade Shows 2026, published 1 April 2026, using CEIR, IAEE and Exhibitor Magazine data. This is a United States exhibition figure, and the report states that vendors have every incentive to obscure pricing, so treat it as orientation rather than a target.
- Your own figure is on the result panelCost per qualified lead for a trade show, cost per qualified conversation for a hosted event. Compare it against your own cost per lead from paid media, which your team already knows, rather than against a table nobody can source.
Your measurement level, one to five
The same ROI figure means very different things depending on how it was produced. Tick what is true of this programme.
Outputs are being reported as results. Attendance, impressions, lead scans and EMV headlines describe activity.
Every formula used here
If the working is hidden there is no reason for a board to trust the number. Every formula below is the one the tool runs.
- Fully loaded cost, hosted eventC = venue + content + travel + other + (people × days × day rate) + promotion spend
- Fully loaded cost, trade showC = (m² × rate) + build + travel + services + other + (people × days × day rate) + promotion spend
- Direct profitPₕ = revenue × share the event caused × gross margin
- Net promoter scoreNPS = (promoters − detractors) ÷ responses × 100
- Adjusted share creditedshare attendees credit × their confidence in that estimate
- Share the event causedyour own estimate, or the adjusted share from the survey where you switch it on
- Qualification yieldq = qualified ÷ audience, derived from your counts
- Opportunity conversionc = opportunities ÷ qualified, derived from your counts
- Attribution window sharew = min(1, attribution window ÷ sales cycle)
- Recognised pipelinePipeline = opportunities × average deal size × w
- Expected pipeline profitPₚ = Pipeline × win rate × gross margin
- Event ROI, percentageROI % = ((Pₕ + Pₚ) − C) ÷ C × 100
- Return on spend, multiple(Pₕ + Pₚ) ÷ C, always exactly 1.00 higher than the ROI percentage
- Pipeline multiplePipeline ÷ C
- Break-even multipleB = (C − Pₕ) ÷ (win rate × gross margin × C)
- Cost per thousand reached, by channelchannel spend ÷ (channel reach ÷ 1,000)
- Cost per lead, by channelchannel spend ÷ channel leads
- Share of voiceyour mentions ÷ total category mentions
- Total reachpaid reach + (posts × average reach per post)
- Earned media value(social impressions ÷ 1,000 × social CPM) + (press impressions ÷ 1,000 × press CPM)
- Contributed mediarate card value of media a partner or the organiser contracted to provide
- Adjusted media valueEMV × quality weighting
- Data asset valueopted-in contacts × replacement cost per contact
- People more likely to buyaudience × purchase intent shift in percentage points
- Total programme valuePₕ + Pₚ + data asset value + contributed media + adjusted media value, where media value is switched on
- Event ROI Methodology, Event ROI Institute Phillips-derived. Events create value by changing participant behaviour. If participants do not do something they would otherwise not have done, there is no value.
- ROI Institute, participant estimate technique One of the isolation methods in the Phillips ROI Methodology. Participants estimate how much of the improvement the programme caused. Because those estimates are not always accurate, they are adjusted for error using a confidence percentage given by the same participant. That is the calculation behind group 06.
- IEG 3-2-1 approach Value for money, value for brand and value for business, evaluated through independent valuation and primary research.
- Bizzabo, 2026 State of Events 40% of organisers still report difficulty proving event ROI, down from 70% in 2025. Average B2B event: 412 registrations, 269 attendees.
- Forrester, Q1 2026 State of B2B Events 400 plus event decision-makers. 38% of CMOs agree their events perform well. 62% satisfaction where the event platform is deeply integrated, against 37% without.
- ShowHero, State of Trade Shows 2026, CEIR-derived All-in exhibitor cost per lead USD 112 to 186, about AED 411 to 683 at the peg of AED 3.6725. Median all-in spend USD 32,400 per show in 2025, about AED 119,000, up 14% on 2022. 67% of B2B buyers visit a booth because of a pre-show email.
- RankWorks, field marketing economics Pipeline-to-cost target of 3:1 to 5:1. True event cost undercounted by 30 to 50% where only direct expenses are tracked. Windows of 30 to 45 days for 30 to 60 day cycles, 90 days or more for enterprise cycles.
- AnyRoad, 2026 experiential KPI framework Data capture target of 60 to 80% with group-capture tooling. Incrementality requires a 3 to 6 month baseline. A 5 to 10 point lift in purchase intent often precedes a real sales increase.
- IAB UK influencer measurement guidance Four-layer stack. EMV without a disclosed CPM benchmark and weighting method is directional at best.
- EventTrack 2026, Event Marketer with Sparks Over 1,000 Fortune 1000 marketers and attendees. 61% of consumers more inclined to purchase after an event. 85% of B2B attendees feel better educated.
- Binet and Field, IPA Roughly 60% of budget to long-term brand building, 40% to short-term activation. Events sit on the brand-building side.
What this tool will not do. It will not turn an estimate into evidence. Every figure it returns inherits the quality of what you put in, which is why the maturity check sits above the download and not below it. Pick one formula, use it across every event, and publish the method alongside the number. Mixing formulas between reporting cycles is what creates the arguments about the real ROI.
Get the measurement right before the next event
Most event programmes do not have a measurement problem, they have a design problem: the tracking was specified after the event was booked. I work with marketing teams to put the objectives, the CRM structure, the control design and the reporting in place before the next one opens.