"What's our class fill rate?" is one of the most-asked studio operator questions. The answer is almost always misleading.
Here's why average utilization — the number you see first — hides most of what you care about, and the three cuts that actually matter.
The problem: aggregate utilization isn't an operational metric
If you look at a boutique pilates studio over a month and compute (check-ins / capacity) across every class, you'll get a number. Let's say it's 64%.
That number tells you almost nothing operationally. The distribution is almost always bimodal — your 6pm Tuesday is running near capacity and your 11am Friday is nearly empty. Averaging them doesn't give you "the picture" — it averages out the signal you needed.
The common industry framing of "aim for X% utilization" is meaningless for this reason. What matters isn't the average. It's how skewed the distribution is, and where the gaps are.
The three cuts that matter
1. Peak vs. trough
What's your best slot's utilization? What's your worst? The gap between them tells you more about your schedule than the average does.
A studio with peak at 95% and trough at 40% has a scheduling problem: demand is concentrated in a few slots. Solutions are schedule redesign (add capacity to peak, cut under-performing slots) or pricing (peak pricing on hot times).
A studio with peak at 78% and trough at 65% has a marketing problem: demand is evenly distributed but not saturating anywhere. More top-of-funnel helps.
You can't tell which situation you're in from the average alone.
2. Weekday vs. weekend
Boutique fitness demand typically splits by lifestyle pattern: weekday mornings and evenings (commuters), weekday midday (stay-at-home, self-employed, remote workers), weekend mornings (leisure).
The utilization distribution across these buckets tells you who your actual customer is. Studios that think they're "evening" studios sometimes discover they're actually "weekend morning" studios. That changes everything downstream — marketing positioning, instructor scheduling, retail product mix.
3. Studio-level vs. instructor-level
Two classes at the same time in the same studio can have different utilization. Sometimes it's the time (people prefer 6pm to 6:30pm). Sometimes it's the instructor.
Separating the two requires looking at the same slot with different instructors, or the same instructor in different slots. When a specific instructor fills consistently across slots, they have pull. When a slot fills consistently regardless of who's teaching, the time is driving the demand.
Both are useful information. Conflating them is how you cut the wrong instructor.
What public benchmarks actually say
The short version: meaningful class utilization benchmarks for boutique pilates studios specifically don't exist in a publicly usable form. The bigger fitness-industry reports (IHRSA, ClubIntel) tend to focus on gyms and health clubs, where the utilization concept applies differently (open-access facilities vs. booked classes).
What IS commonly discussed in operator circles, framed as rules of thumb rather than benchmarks:
- Evening peak slots at well-positioned boutique studios are generally full or near-full. Late-afternoon and evening weekdays are the most valuable inventory.
- A studio where virtually every slot is at high utilization is probably under-supplied. You're leaving money on the table by not adding capacity.
- A slot that sits consistently under 40% for six-plus weeks should be examined. Structural issue, not noise.
These aren't benchmarks. They're rules of thumb from conversations with operators. Your own studio's distribution will tell you more than any of them.
How to use your own data
A useful weekly exercise:
- Pull utilization by (day of week × hour) for the last four weeks.
- Identify your top three slots by fill rate.
- Identify your bottom three slots by fill rate.
- For each of those six slots, check instructor consistency.
From that view, ask:
- Top three: Is there spillover demand? Could you add a second class in the same timeslot? Is there a waitlist?
- Bottom three: Has this slot been this way for four or more weeks? If yes, something structural is wrong — time, instructor, or marketing. If no, it's probably noise; wait a week.
The takeaway
Stop asking "is our utilization good?" Start asking "which of our slots is doing the work, which is dead weight, and what does the pattern tell me about my schedule and my marketing?"
The average number hides all of that. The cuts tell you what to do.