How do I calculate the member retention rate of a fitness gym?
The retention rate shows what share of the members who were due to renew actually stayed. The formula is simple, but 4gym does not compute it: it has no retention or churn analytics. You count it yourself, from the memberships list.
Short answer
- The formula is: members renewed in the period divided by members whose membership ended in the period, times 100.
- Pick a period, for instance one month, and count the memberships that end in it, from the memberships list.
- Count how many of those memberships were renewed, meaning the same member has a new membership starting after them.
- Divide the second number by the first and multiply by 100: the result is the retention rate of the period.
- 4gym does not calculate retention or churn and does no cohort analysis: you obtain the figures by hand and keep them yourself.
A manually calculated example
March retention, calculated from the memberships list
| Step | What you do in 4gym | Value |
|---|---|---|
| 1. Memberships ending in March | You go through the memberships list by end date | 80 |
| 2. Of those, renewed | You check whether the member has a new membership starting after the end | 56 |
| 3. Retention rate | 56 divided by 80, times 100 | 70% |
What data 4gym gives you
- The overview shows members, active memberships and those ending within the next 7 days.
- The memberships list shows each member's plan, start and end date and status.
- A renewal creates a new membership from the same plan and the old one stays in history, so you can count them apart.
- The date-range report, available on plans with advanced reporting, shows memberships started in the range, not the renewal rate.
Common mistakes
- Dividing by all active members, not by those whose membership ended in the period, and getting an overly optimistic rate.
- Counting as renewed a new membership of another member, or one started long after the end, with no clear rule.
- Comparing different months without allowing for the season: January and July are not directly comparable.
How 4gym helps
- The base data is in one place: memberships, end dates, statuses and renewals linked to the source membership.
- The expiring-memberships counter shows you 7 days ahead whom to talk to.
- History is kept on renewal and cancellation, so you can redo the calculation at any time.