Free tool

No show cost calculator

Put in your own numbers and see what missed appointments cost you. The calculation runs in your browser.

The starting values are only an example. Replace them with the numbers from your own calendar.

Empty slots per month0
Lost per month0
Lost per year0
Could be recovered per year0

Everything runs in your browser. Nothing you type is saved or sent anywhere.

How it is calculated

No shows per year = appointments per week × no show share × working weeks per year.

Lost per year = no shows per year × average price. Lost per month = lost per year ÷ 12.

Recovered = lost per year × the share you estimate reminders could prevent. This share is your own estimate and differs from business to business.

Four ways to reduce no shows

  1. Send a reminder the day before, with a link to cancel or move the appointment.
  2. Show your cancellation policy clearly when clients book.
  3. Ask for a deposit for long or high value services.
  4. Keep a waitlist, so a freed slot can be offered to someone else.

Do this automatically with Agendessa

Agendessa sends reminders by email or WhatsApp, lets clients cancel or move online and offers freed slots to the waitlist.

Try Agendessa free

Frequently asked questions

Is the calculator free?

Yes. It runs in your browser, asks for no personal data and saves nothing.

Which no show share should I use?

Count the missed appointments in your calendar over the last few weeks and divide them by all appointments in that period. Your own number is more useful than any general average.

Can I link to this calculator?

Yes. Use the link in the box at the end of the page.

Link to this tool

You are welcome to share this tool or link to it from your website, blog or newsletter.