The numbers every gym owner should track, and the three that matter most
By Andrew Wallis · Published 22 October 2026 · 6 minute read
The short answer
You don't need a dashboard full of charts. A handful of numbers, checked once a month, tells you most of what's happening in your gym or studio.
If you only track three, make them new members, members lost and profit margin. Together they tell you whether you're growing, and whether that growth is paying you.
Keep it simple
Most owners either track nothing, or track so much that they never look at it. Neither helps.
Alwyn Cosgrove, one of my early mentors, focused on a few dials that matter and on improving each of them a little, month after month. Taki Moore, who coaches coaching-business owners, does the same with his five dials (opens in a new tab).
That's the idea behind this article: a short list, checked regularly, with small improvements that add up. The same thinking applies to your follow-up.
The numbers to track
These are the numbers I'd check every month. Each one answers a simple question.
- Leads. How many people got in touch about joining? Count calls, messages, forms and walk-ins. The free tracker in turning enquiries into members makes this easy.
- New members. How many joined? Compare it with your leads to see your joining rate, or use the enquiry-to-member checker.
- Members lost. How many cancelled? Divide last month's cancellations by your members at the start of that month to get your churn rate. The member loss calculator shows what it's costing you.
- Active members. How many paying members do you have now? If new members don't outnumber members lost, you're shrinking, however busy it feels.
- Revenue. How much cash came in? Divide it by your active members to see what an average member is worth each month.
- Profit margin. What percentage of your revenue is left after all your costs, before you pay yourself? Revenue is vanity; profit is what keeps the doors open.
- Capacity used. How full are your sessions? Divide the people who attended by the places available. Full sessions mean it's time to add more; empty ones mean marketing, or a timetable change.
- Your own time. How many days a week did you spend working on the business, rather than in it? And how many proper days off did you have?
Your margin on each type of session matters too. The margin calculator checks private, semi-private and group training against healthy targets.
If you only track three
If eight feels like a lot, start with these three:
- New members: is the business bringing in enough people?
- Members lost: is it keeping them?
- Profit margin: is the growth actually paying you?
Most other numbers flow from these. Leads feed new members. Revenue follows how many members you have and what they pay. And a gym that's growing but not profitable is just getting busier.
Once those three are a habit, add the others one at a time.
A one-hour monthly review
Numbers only help if you look at them and act. Set aside an hour on the same day each month, and work through these steps:
- Write down this month's numbers, next to last month's and the same month last year if you have them.
- What's working? Which campaigns, offers or changes brought in members? How can you do more of them?
- What's not? What needs tweaking, and what should you stop doing altogether?
- Where are you stuck? Which jobs kept you working in the business? Can any be dropped, put into a system, automated or handed to someone else?
- Choose one to three actions for next month, and put them in your diary.
Then protect some time every week to work on those actions. The review tells you what to do; the weekly time is when it actually gets done.
Where to find the numbers
- Your gym software usually shows members, cancellations, attendance and revenue. See the best gym management software if yours doesn't.
- Your bookkeeping software or accountant gives you costs and profit.
- A simple tracker or CRM covers leads and how many joined.
If some figures are hard to get, start with an honest estimate, and make it more accurate each month. A rough number you look at beats a perfect one you don't.
Questions owners ask
What numbers should a gym owner track?
Leads, new members, members lost, active members, revenue, profit margin, how full your sessions are, and your own time spent working on the business. Check them once a month.
What are the most important gym metrics?
If you only track three, make them new members, members lost and profit margin. Together they tell you whether you're growing, keeping members, and making money from it.
How do I work out my gym's churn rate?
Divide the number of members who cancelled last month by the number of members you had at the start of that month, then multiply by 100 to get a percentage.
How often should I review my gym's numbers?
Once a month, for about an hour, on the same day each month. Compare with last month, decide what's working and what isn't, and choose one to three actions for next month.
Do I need a dashboard to track my gym's numbers?
No. A simple sheet or your gym software is enough. What matters is looking at the same few numbers every month and acting on them.
What is a good profit margin for a gym?
It varies with your type of training, rent and team. Check each type of session with the free margin calculator, and aim to keep at least 75% of what a session brings in after paying the coach.
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I've spent 25 years in the fitness industry: on the gym floor, running my own boot camps and coaching gym and studio owners since 2012, including leading NPE Fitness's UK and European coaching team. I help independent gyms and studios get and keep more members.