A QR menu removes one wait: the wait for someone to bring the menu. The guest sits down, scans the code and is reading the dishes straight away. Whether that adds up to 15% more guests a day depends on the restaurant, and you can count it rather than take it on trust.
Where the 15% comes from, and whether it holds
We know of no study that measured 15% more guests from a QR menu alone. The figure circulates in marketing material without a source. Treat it as a target to test, not a promise.
The closest hard data comes from academia. Tom Tan and Serguei Netessine, in "At Your Service on the Table" (Management Science, 2020), analysed two years of data from 66 restaurants of a US casual-dining chain that rolled out tabletop tablets in stages. Meals got about 10% shorter, the average check rose by about 1% and sales per minute rose by about 11%.
Those tablets did more than replace the printed menu: guests could order drink refills and pay the bill on them. They supported the waiters rather than replacing them. And the study measured the pace of service, not the number of guests — that only grows when someone is waiting for a table.
So a view-only QR menu will deliver less than that 11%. 15% becomes plausible when guests also order and pay from their phones and the dining room is full at peak.
Efficient service means more satisfied customers
At peak hours turnover comes down to table rotation. Take 40 covers, a two-hour lunch window and a 60-minute meal: at most 80 guests. Cut the meal to 50 minutes and the same room seats about 96. That only happens if someone is standing at the door at 13:30.
Otherwise the table you freed up early stays empty.
A guest waits three times: for the menu, for the order to be taken and for the bill. A QR menu removes the first. By the time the waiter arrives, the table knows what it wants. The other two waits shrink only with table ordering by QR and payment on the phone. A slow kitchen eats any of these gains — no code makes a dish leave the pass faster.
How to measure whether the QR menu worked
Pull three numbers from your till: covers at peak, time from opening to closing a bill, and the average check. Take 4–8 weeks before the launch and the same span after it.
Compare the same weekdays in the same season. October set against August at a seaside venue will show a rise or fall that has nothing to do with the QR code. If you changed prices, the menu or the waiters' rota in the same weeks, the result can't be read.
Shorter table times without more covers are a finding too: the restaurant has a demand problem, not a capacity problem.
QR menu — ease of use
There is nothing for the guest to install: the iPhone camera has read QR codes since iOS 11 (2017), and on Android the camera or Google Lens does it.
A QR menu can be updated in real time. If a dish sells out, switch it off and the waiter no longer has to explain to each table that it's gone. It also shows which items guests open most often, which is the basis for deciding what stays at the next menu change.
A QR menu pays off most in a restaurant that turns guests away at peak. In a half-empty room it speeds up service but adds no one.
