Six weeks before doors open, somebody at your organisation has to sign a hardware order. Four printers or eight. Two kiosks or none. The quote arrives with a number of stations already filled in, and there is rarely a calculation behind it, only a supplier’s rule of thumb and a guess at what last year felt like.
That signature is worth more attention than it usually gets, because the published guidance underneath it does not agree with itself. One vendor guide puts a staffed check-in desk at 40 to 60 people an hour. Another puts it at 60 to 80. A third works with 120. All three are describing the same desk. A factor of three between the low and the high figure is not a rounding difference, it is the difference between four stations and twelve, and no published guide explains where the spread comes from.
It comes from four variables that vendor content tends to average away: whether your staff search by name or scan a code, whether the badge already exists or has to be printed, whether exceptions queue in the same line as everyone else, and how many people arrive at once. Get those four right and the station count falls out of the arithmetic. Get them wrong and you can buy the best check-in software on the market and still build a queue.
Below: why the peak hour rather than the guest list sets your entrance, the three setups and what each actually produces, the calculation itself, what your printer choice does to the queue, and the two supplier questions that European organisers should be asking in 2026.
The peak hour sets your entrance, not the guest list
The instinct is to scale the entrance to total attendance. Two thousand people, so a big desk. It is the wrong input, because those two thousand people do not arrive evenly across the registration window.
They arrive in a surge. Published planning figures put 60 to 80 per cent of arrivals inside a window of 60 to 90 minutes, and the pattern is sharpest exactly where it hurts most, at morning conference openings tied to a keynote. Your entrance does not have to process two thousand people. It has to process roughly fourteen hundred of them in ninety minutes, and then stand nearly idle for the rest of the day.
That asymmetry is the whole planning problem. Size for the average, queue at the peak.
Two consequences follow for the person signing that hardware order. First, the working number in every calculation below is arrivals in the peak hour, never total registrations. Second, the assumption behind it belongs in writing. If you are planning on seventy per cent of confirmed registrations turning up inside ninety minutes, write it down, then measure the real curve on the day and correct it next time. We make the same argument about attendance assumptions in no-show rates at B2B events, and the reasoning transfers directly: an assumption nobody wrote down cannot be proved wrong, which is what makes it dangerous.
Three setups, and what each one produces
Peak arrivals only become a station count once you know what one station actually does. There are three ways to get a badge onto a lanyard, and they differ in what happens at the moment of arrival rather than in how they look on a floor plan.
Pre-printed and sorted means badges are produced in advance and laid out alphabetically. It is the cheapest setup in hardware and the most expensive in staff attention, because every walk-up, every name change and every misspelling becomes a manual exception. It also produces a pile of unused badges for the people who never came.
A staffed desk with on-demand printing keeps a person in the loop but produces the badge at the moment of arrival. Nothing is sorted in advance, late registrations are not a problem, and the data on the badge is whatever the registration record said thirty seconds ago.
A self-service kiosk removes the person. The attendee scans the code from their confirmation email, checks their own details, and the badge prints. Published throughput figures put kiosks at roughly 80 to 120 an hour per unit, against 40 to 60 for a staffed desk working from pre-printed badges.
Published planning ranges
Attendees processed per hour, per station
Treat those bars as a starting range, not a promise. They come from suppliers with an interest in the answer, and the underlying methodology is rarely published. What they do establish reliably is the shape of the difference: the jump from a paper list to a scan is enormous, and the jump from a scan to a kiosk is real but far smaller.
The calculation nobody publishes
Once you have a peak hour figure and a per person time, the station count is arithmetic. Divide 3,600 seconds by your processing time to get the throughput of one station, then divide peak arrivals by that number, then add the exception lane.
Four steps
From your arrival curve to a station count
- Step 1 Count the peak hour Take expected arrivals in your busiest 60 minutes, not total registrations. Without last year’s data, start at 70 per cent of expected attendance across 90 minutes.
- Step 2 Set a realistic per person time Scan and print at a staffed desk is 45 to 60 seconds once you include the greeting. A kiosk with a clean pre-registration record is under 30. A name search without a code is minutes, not seconds.
- Step 3 Divide 3,600 seconds divided by your per person time gives one station’s hourly throughput. Peak arrivals divided by that gives the number of stations you need.
- Step 4 Add the exception lane One dedicated help position per four to six fast lanes, plus reserve badge stock. This is the step that most plans skip, and the one that decides whether the fast lanes stay fast.
Work it through for a conference of 2,000 with 70 per cent arriving inside 90 minutes. That is roughly 930 arrivals in the busiest hour. At 60 seconds per person a station handles 60, so you need about 16 positions. At 30 seconds each you need 8. The difference between those two answers is not the software brand on the invoice, it is whether the badge has to be searched for or scanned.
Then add the lane the arithmetic does not produce. A supplier case describes a 2,000 person conference that opened with eight stations, hit congestion immediately, and recovered only after moving to fourteen stations with a serpentine queue and a separate desk for problem cases, at which point waits fell from 25 minutes to under five. The extra stations helped. Pulling the problem cases out of the fast lane helped more.
A broken record blocks more than a missing station.
Your printer choice is a queue decision
Hardware is where the calculation quietly gets decided, because the two common badge technologies are not in the same performance class and the specification sheets say so plainly.
A direct thermal label printer such as the Brother QL-820NWBc is rated at up to 110 labels a minute at 300 dpi, and it consumes no ink and no toner at all. The heat sensitive stock is the entire recurring cost. A plastic card printer such as the Zebra ZC300 is rated by its manufacturer at 200 single-sided colour cards an hour, against 900 an hour if you drop to monochrome. Its colour ribbon cartridge is rated for 200 images, so a full colour card programme also means swapping ribbons during your peak.
Rated speeds from the manufacturers
What the specification sheets say
Nobody prints at rated speed at a check-in desk, because the human in front of the desk is slower than the machine. The point is the ratio. A thermal badge is never the bottleneck in your queue, and a full colour plastic credential can be. Cost follows the same split, at roughly 0.10 to 0.50 US dollars for a thermal badge against 1 to 3 dollars for a plastic card according to supplier pricing guidance.
There are good reasons to print cards: multi day access credentials, reuse, a premium delegate tier, durability in a lanyard for a week. Just choose them knowing what they do to the morning.
A B2B badge carries rights, not just a name
The exception rate that lane absorbs is not bad luck either. It follows from what a badge has to represent at this kind of event. At a consumer event a badge proves someone paid; at a trade show or a business conference it does considerably more, and this is where tooling built for guest lists starts to strain.
Your exhibitors, your hosted buyers, your trade visitors, your press, your speakers and your build-up crew hold different tickets, enter on different days, reach different areas and appear differently in the matchmaking system. The badge is the visible end of a permissions record. When badge type and ticket category are the same underlying record, a corrected registration produces a corrected badge automatically. When they live in two systems, somebody reconciles them by hand at seven in the morning.
That is also why the exception lane is not just a courtesy desk. A buyer who upgraded last week, an exhibitor who sent a substitute, a speaker added on Friday: none of these are errors, they are normal B2B traffic, and they all take longer than thirty seconds.
Solution: in Converve, participant categories carry both the ticket and the access rights, badges are printed and scanned from the same record through the web app, and check-in status flows straight into the meeting matrix. When a hosted buyer has not arrived by ten, the person managing the appointment schedule can see it before the supplier is sitting opposite an empty chair.
Cost per check-in, not per device
Rental quotes are priced per unit and per day, which is the wrong denominator for a decision. The number worth comparing is the cost per person actually processed at your peak.
A supplier worked example for a single kiosk at a 500 person event builds up roughly like this: about 410 dollars for the core components, about 729 with consumables and software, around 1,000 for check-in software at that size, and 250 each way for delivery and collection, landing near 2,229 dollars for one fully equipped station. Watch the rental structure as much as the headline price, because a printer advertised at 150 dollars a day against a three day minimum costs 450 dollars for your one day event.
Take your own numbers, add staff hours at the peak, and divide by arrivals in that peak hour. Two things usually become visible at once. Kiosks look expensive per unit and reasonable per check-in, because published figures suggest one kiosk displaces 1.5 to 2 registration staff when 70 to 80 per cent of attendees arrive pre-registered with a code. And a paper list looks free until you count the four to six minutes per person it costs at peak.
The cheapest quote is rarely the cheapest morning.
When self-service is the wrong answer
Vendor content rarely says this, so it is worth saying plainly. Kiosks are the wrong choice in at least four situations.
- Low pre-registration: the kiosk advantage depends on people arriving with a code. If half your attendees register at the door, you are running an on-site registration desk with a kiosk parked next to it.
- Accreditation with document checks: where a trade visitor has to prove professional status or a badge has to be matched to identification, a person has to look at something. That is a staffed process by definition.
- Premium hosted formats: for a hosted buyer programme, the welcome is part of what the buyer was promised. Sending a flown-in buyer to a touchscreen saves ninety seconds and costs you the first impression you paid four figures to create.
- Complex badge types in a small crowd: below roughly 300 attendees with six ticket categories, the exception rate is high enough that the kiosk mostly generates work for the help desk.
The honest version of the advice is a mix. Kiosks for the pre-registered majority, a staffed lane for anyone whose record needs a human, and a separate desk for people registering on the day.
Two supplier questions European organisers should ask in 2026
Two things have changed for European events, and neither shows up in the check-in comparisons currently ranking on Google.
The first is accessibility. The European Accessibility Act (EAA), implemented in Germany as the Barrierefreiheitsstärkungsgesetz, has applied since 28 June 2025 to newly placed products, and self-service terminals such as ticketing and check-in machines are named explicitly in its product scope. Terminals already in use may run to the end of their economic life, capped at 20 years, and existing service contracts have until 28 June 2030. Whether a business event check-in kiosk falls inside the Act’s scope is genuinely arguable, since product duties attach to the listed consumer services, so treat it as a procurement question rather than a compliance verdict: ask your kiosk supplier for the conformity documentation and let them make the argument in writing. Accessible design is worth having regardless of who the Act catches.
The second is what happens to the scan afterwards. A badge scan at a session door and a badge scan at an exhibitor stand are different processing purposes with different legal bases, and exhibitors reselling lead data is where organisers get into trouble. Our checklist for GDPR compliant event software covers the vendor side of that, and the exhibitor side belongs in the discussion about lead retrieval for event organisers, which is the layer that starts where this one ends.
Frequently asked questions
How many check-in stations do I need?
Divide expected arrivals in your peak hour by 3,600 seconds divided by your processing time per person, then add one help position per four to six lanes. For a 2,000 person conference with 930 arrivals in the peak hour, that is roughly 16 stations at 60 seconds per person, or 8 at 30 seconds.
What is event check-in?
Event check-in is the process of verifying an arriving attendee against the registration record and issuing the credential that carries their access rights. At B2B events the credential is usually a badge whose type is determined by the ticket category.
Should I pre-print badges or print on demand?
Print on demand if you expect late registrations, name changes or walk-ups, which describes most business events. Pre-printing is defensible for a closed, confirmed list that will not change, and it still needs a printer on site for corrections.
What does it cost to print a badge?
Roughly 0.10 to 0.50 US dollars for a direct thermal badge, where the stock is the only consumable, against 1 to 3 dollars for a plastic card, which also needs a colour ribbon rated for a few hundred images.
How many spare badges should I hold?
Supplier guidance suggests holding 10 to 15 per cent of expected attendance as pre-printed backups plus blank stock for walk-ups, and printing 50 to 100 test badges across every station the evening before.
Conclusion
The check-in question looks like a software question and behaves like an arithmetic one. Your peak hour, your processing time per lane and your exception rate produce a station count, and no brand on the invoice changes those three inputs. Pick the setup after you have done the sum, not before.
Two habits carry most of the benefit. Write down your arrival assumption so you can correct it next year, and keep exceptions out of the fast lane. Everything else on the quote is detail.
If you are also rebuilding the registration layer that feeds all of this, our event planning checklist sets out where check-in sits in the wider timeline, and the registration module shows how ticket categories, badges and meeting data stay in one record. Want to talk through the numbers for your own entrance? Get in touch with Converve.
