NO-SHOWS AND LATE CANCELS

What do no-shows and
late cancels cost your studio?

By Michael Berger, founder of Slynq · Last updated September 28, 2026

Michael Berger is the founder of Slynq. He is building studio software for independent fitness and wellness studios.

Every late cancel or no-show that nobody fills is a spot you could have sold. Enter last month’s late cancels, no-shows, refilled spots, and the fees you collected, and this calculator shows what the empty spots were worth, using only your numbers.

Join the waitlist.

Your numbers,
last month.

Use last month’s numbers from your booking software. For the sharpest result, count only classes that were full or had a waitlist, since those are the spots someone else could have taken.

Late cancels last month

No-shows last month

Late-cancel spots someone else filled

No-show spots filled by a walk-in or standby

Your average revenue per class spot ($)

Late-cancel and no-show fees you actually collected ($)Money actually charged, not fees you waived.

Total booked spots last month (optional)Adds your late-cancel and no-show rates.

Classes you ran last month (optional)Adds the cost per class.

Not sure of your revenue per spot? Work it out

Divide last month’s class revenue by last month’s visits. Both are your own numbers.

Class revenue last month ($) (optional)

Visits last month (optional)

Runs in your browser. Nothing is sent or saved.

Fill in the six required fields and your result shows up here. Nothing is filled in for you, and the example text in each box is never used in the math.

Calculator by Slynq

HOW THE MATH WORKS

Every formula,
with your numbers.

L = late cancels last month: not entered
N = no-shows last month: not entered
RL = late-cancel spots filled: not entered
RN = no-show spots filled: not entered
P = average revenue per class spot: not entered
F = fees actually collected: not entered
B = total booked spots (optional): not entered
C = classes run (optional): not entered

1. Spots lost: O1 = L + Nenter your numbers above
2. Spots refilled: O2 = RL + RNenter your numbers above
3. Spots that stayed empty: O3 = (L - RL) + (N - RN)enter your numbers above
4. Refill rate (all): O4 = (RL + RN) / (L + N) x 100enter your numbers above
5. Late-cancel refill rate: O5 = RL / L x 100enter your numbers above
6. Value at risk: O6 = (L + N) x Penter your numbers above
7. Value recovered: O7 = (RL + RN) x Penter your numbers above
8. Empty-spot value: O8 = O3 x Penter your numbers above
9. Net monthly cost: O9 = max(0, O8 - F)enter your numbers above
10. Yearly, if every month looked like last month: O10 = O9 x 12enter your numbers above
11. Per class: O11 = O9 / Center your numbers above
12. Late-cancel rate: O12 = L / B x 100enter your numbers above
13. No-show rate: O13 = N / B x 100enter your numbers above
14. Value of one more refill: O14 = Penter your numbers above
15. Revenue per spot helper: P = monthly class revenue / monthly visits

Rounding: money to whole dollars in the results, cents in the math above. Rates to one decimal. Formula 5 is the same measure as “refilled spots divided by late cancels” in the refill more late-cancelled spots before class playbook.

This is the value of spots that sat empty. When a member on a pack or membership no-shows, you may already have their money. The number shows what that spot could have earned from someone else, which is most real in classes that were full or had a waitlist.

WORKED EXAMPLE

Worked example (example numbers, not a benchmark)

Example studio numbers for one month:

Late cancels L = 24, no-shows N = 12
Late-cancel spots refilled RL = 10, no-show spots refilled RN = 2
Revenue per spot P = $22 (example: $13,200 class revenue / 600 visits)
Fees collected F = $120
Booked spots B = 600, classes run C = 80

The math:

Spots lost: 24 + 12 = 36
Spots refilled: 10 + 2 = 12
Stayed empty: (24 - 10) + (12 - 2) = 24
Refill rate: 12 / 36 = 33.3%. Late-cancel refill rate: 10 / 24 = 41.7%
Value at risk: 36 x $22 = $792
Value recovered: 12 x $22 = $264
Empty-spot value: 24 x $22 = $528
Net monthly cost: $528 - $120 = $408
If every month looked like this: $408 x 12 = $4,896 a year
Per class: $408 / 80 = $5.10
Late-cancel rate: 24 / 600 = 4.0%. No-show rate: 12 / 600 = 2.0%
Each extra refill is worth $22

Swap in your own numbers above. These are made-up example values.

WHAT TO DO WITH THE NUMBER

Three places
to take it.

Refill more of the spots. Work the list in order and shrink the claim window as class gets closer: refill more late-cancelled spots before class.
Decide who gets a freed spot and how fast: write the waitlist policy that decides who gets a freed spot.
Check the fee you charge and whether you actually collect it: late-cancel and no-show fee policies owners enforce, and the late-cancel policy template.

THE OTHER LEAK

Calls you
never answered.

This page counts members who booked and didn’t come. The missed-call worksheet counts people who never got through to book.

Run both with your own numbers. Start with the missed-call cost worksheet.

EMBED THIS CALCULATOR

Put it on
your site.

Studio consultants, web designers, and bloggers can embed the calculator on a policies or resources page. No account needed.

<iframe src="https://www.slynq.io/no-show-late-cancel-calculator/?embed=1" width="100%" height="780" style="border:0" title="Studio no-show and late-cancel cost calculator" loading="lazy"></iframe>
<p><a href="https://www.slynq.io/no-show-late-cancel-calculator/">No-show and late-cancel calculator</a> by Slynq</p>

FAQ

Questions owners ask
about the math.

How do I calculate my studio’s no-show rate?+

Divide last month’s no-shows by total booked spots, then multiply by 100. 12 no-shows out of 600 booked spots is 2.0%. Enter your booked spots above and the calculator does it for you.

What’s the difference between a late cancel and a no-show?+

A late cancel is a member who cancels inside your cancellation window. A no-show never cancels and doesn’t come. Keep them separate, because a late cancel still gives you a little time to offer the spot to the waitlist and a no-show usually doesn’t.

Is this money I actually lost?+

It’s the value of spots that sat empty. If a member on a pack or membership no-shows, you may already have been paid. The number shows what that spot could have earned from someone else, which matters most in classes that were full or had a waitlist.

Should I count waived fees?+

No. Enter only fees you actually charged and collected. If you waive a lot of fees, the gap between your empty-spot value and your fees shows you what the waivers cost.

How much should I charge for a late-cancel or no-show fee?+

This page doesn’t set a number for you. Use the result to see what an empty spot is worth to your studio, then write the fee into your policy. See the late-cancel and no-show fee policies owners enforce and the late-cancel policy template. Check local rules and your membership terms before you charge a fee.

HOW SLYNQ FITS

What Slynq is,
plainly.

Slynq is studio management software with an agentic front desk for independent studios. Members text the studio number to book or cancel. When a spot opens in a class with a waitlist, Slynq holds it for the next member on the list and sends a payment link to claim it.

Slynq is in development. Founding access opens in waves. Demos are not available yet. Joining the waitlist is free and does not start a paid plan.

FOUNDING ACCESS

Fewer empty spots
starts with the number.

Slynq is in development. Founding access opens in waves, and joining the waitlist is free.

Join the waitlist.

What do no-shows andlate cancels cost your studio?

Your numbers,last month.

Every formula,with your numbers.

Worked example (example numbers, not a benchmark)

Three placesto take it.

Calls younever answered.

Put it onyour site.

Questions owners askabout the math.

What Slynq is,plainly.

Fewer empty spotsstarts with the number.