No-Show Cost Calculator
A no-show leaves a slot you staffed, heated and held empty. This calculator prices those empty slots using your numbers: how many appointments you book, how often people do not turn up, and what a kept appointment is worth to you.
The pre-filled numbers are example assumptions so you can see the math. Change every one to your own numbers. They are not averages for your trade or your market.
Empty slots / month
15
Cost / month
$2,250
Cost / year
$27,000
Estimate from your inputs: 100 booked appointments a month, a 15% no-show rate, and $150 an appointment.
How the math works
Three steps, nothing hidden. First, bookings are put on a monthly footing: a weekly count is multiplied by 52 and divided by 12, which is the honest conversion, rather than multiplied by 4. Second, the monthly count is multiplied by your no-show rate to get the empty slots. Third, those slots are multiplied by your average appointment value, and the monthly figure is multiplied by 12 for the year.
Worked with the pre-filled example: 100 bookings a month, a 15% no-show rate and a $150 average appointment value give 15 empty slots, $2,250 a month and $27,000 a year. Those inputs are examples chosen to make the steps easy to check. They are not measured rates for any clinic, salon or trade, and your result means something only when all three numbers are yours.
What this assumes
The estimate values an empty slot at the full appointment value, which is the right starting point and not always the final truth. If your team refills some cancelled slots from a waitlist, or a no-show frees time that gets used another way, lower the appointment value or the rate until the inputs match how your book actually runs. What the calculator will not do is soften the number for you behind the scenes.
The usual fixes are reminders that land at the right time, a confirmation step that makes booking feel real, and a waitlist that fills gaps fast. We dug into the cost side for clinics in our clinic no-show cost breakdown, and booking flow is one of the first things we check on a free audit.