Fedev

Free tool

No-show cost calculator

A no-show costs you the full price of the appointment: the time was kept free, the staff member was paid, and nobody else could book the slot. Enter your own numbers below to see what missed appointments cost per month and per year, and how much of it a booking deposit would keep.

%
% of price

The starting values are an example, not an industry average — replace them with yours.

What no-shows cost you

No-shows per month
17.3
Revenue lost per month
€867
Revenue lost per year
€10,400

How it is calculated

  • Appointments per month = appointments per week × 52 ÷ 12 (about 4.33 weeks a month)
  • No-shows per month = appointments per month × no-show rate
  • Revenue lost per month = no-shows per month × average price
  • Kept by deposits = no-shows per month × average price × deposit %
  • Per year = per month × 12

For example, 40 appointments a week at €50 with a 10% no-show rate is about 17.3 no-shows and €867 lost a month — €10,400 a year. A 20% deposit kept on each of those no-shows would bring back €2,080 of it.

Ways to bring the number down

  • Take a deposit when people book, and keep it when they don't turn up, so a no-show still pays for part of the slot.
  • Send reminders before the appointment, with an easy way to cancel or move it.
  • Set a clear cancellation window and show it before the customer pays.
  • Keep track of repeat no-shows, so the same customer can't keep booking and not coming.

More on each: how to reduce no-shows, should you charge a booking deposit? and how to handle repeat no-show customers.

Questions

What counts as a no-show?

An appointment the customer neither attended nor cancelled in time, so the slot could not be offered to someone else. Late cancellations you cannot refill cost the same and can be counted in the same rate.

How is the yearly figure worked out?

Appointments per week × 52 ÷ 12 gives appointments per month. Multiplied by the no-show rate, that is no-shows per month; multiplied by the average price, revenue lost per month. Twelve months make the year.

What does the deposit figure mean?

If every booking takes a deposit and you keep it when the customer doesn't turn up, each no-show still pays you the deposit. The calculator shows how much of the lost revenue those kept deposits cover. It does not count any change in how often people turn up.

Is anything I enter saved?

No. The calculation runs in your browser. The numbers only go into the page address, so you can copy the link and share the result.

Rezervito: Booking & Deposits

Booking for salons, clinics and service businesses — with no-show tracking, customer blocking, debt recording and deposits.

Tell me when it launches Launching November 2026 on the Shopify App Store How Rezervito works