No-Show Restaurant Calculator: Cut No-Shows by 60%
Calculate what no-shows cost your restaurant each week, then activate the WhatsApp reminder sequence that cuts them by 60% in under 3 weeks.
One in twelve people who book a table never turns up. Almost never out of malice: out of forgetfulness. The figure looks harmless until you convert it into money on a 150-cover service.
€35 That's the average loss per no-show. On a 150-cover service with an 8% no-show rate, you lose 12 tables a week, over €1,500 in unearned revenue, every week.
The calculation needs three numbers you already have: covers per service × no-show rate × average spend is the loss on one service. Multiply by the number of services in the week, then by 4.3 for the month.
- A no-show rate often close to 10% in French restaurants, higher at weekends: record yours before you calculate
- A no-show rate that drops sharply with a WhatsApp reminder sequence at D-7 / D-2 / D-0
- <3 wks before you see the first measurable drop in no-show rate (First service with reminders active)
Before, with no automated reminders
- Empty table on the day, no warning
- No way to reseat another guest in time
- Net loss: ~€35 per missing cover
- No-show rate out of your control
After, with the Heep sequence D-7 / D-2 / D-0
- Automatic confirmation at D-7 via WhatsApp
- Reminder at D-2 with a simple cancellation link
- Same-day message if no confirmation received
- No-show rate halved in under 3 weeks
Case study: Noto Paris (Moma Group)
- Before Heep: 8% no-show rate on a 150-cover service, 12 empty tables per week.
- After deployment: rate dropped to 3% within 3 weeks. +€1,800 in monthly revenue recovered.
- See also: the full Noto Paris case study and how to activate reminders with the Zenchef integration.
The number to pull this week isn't the rate your booking system displays: it's the gap between covers booked and covers served over four weeks. Above 5%, the reminder sequence pays for itself within the month.
Frequently asked questions
How much does a no-show cost a restaurant on average?
A no-show typically means around €35 in lost revenue per cover. For a 150-cover restaurant with an 8% no-show rate, that's roughly 12 empty tables per week — over €1,500 in unearned revenue each week.
How does Heep's no-show reminder sequence work?
Heep sends three automated messages: a confirmation request at D-7, a follow-up at D-2 with a simple cancellation link, and a final message on the day itself if no confirmation has been received. The sequence works across WhatsApp, SMS, and email.
How quickly do you see results?
Most restaurants see a measurable drop in their no-show rate from the very first service with reminders active. On average, the rate falls by 60% within three weeks.
Do reminders work with Zenchef, TheFork, and SevenRooms?
Yes. Heep integrates natively with Zenchef, TheFork Manager, and SevenRooms. Reminders are triggered automatically as soon as a reservation is created in your system.


