Salon, spa & fitness
Fitness Marketing ROI Calculator
Works marketing return, where the horizon has to cover retained months.
Result
Simple payback, with no discounting and no financing cost. For anything large or long, money now is worth more than money later and a lender will want interest, both of which make the real return lower than this.
Get a Free Business AuditHow the calculation works
Margin on revenue from members acquired through a spend, divided by the spend, measured over the months those members actually stay. A first-month measurement understates the return severely, and a lifetime measurement overstates it unless the retention figure is a measured cohort rather than an assumption.
What moves the number
- Margin rather than revenue as the numerator.
- Measured retention of the acquired cohort.
- Ancillary revenue from those members.
- Promotional discount included in the cost.
Where this one goes wrong
The honest version measures the cohort: track the members a campaign brought in and see how long they actually stayed and what they spent, rather than applying an average retention figure that was derived from a different kind of member. Promotional cohorts behave differently from organic ones. The discount or waived fee also belongs in the cost rather than being treated as forgone revenue nobody counts.
Before you quote
- Measure the actual cohort, not an average retention figure.
- Include promotional discounts in the spend.
- Count ancillary revenue those members generated.
Questions
About this calculator
What horizon should fitness marketing be judged over?
The months the acquired members actually stayed, measured as a cohort. A first-month measurement understates the return severely; an assumed lifetime overstates it, because promotional cohorts retain differently from organic members.
Should the joining discount be in the cost?
Yes, since it is money given up to acquire the member. Treating it as forgone revenue that nobody counts makes promotional acquisition look far cheaper than it is, and that is how unprofitable campaigns get repeated.
Why measure cohorts rather than averages?
Because the retention of a promotional cohort is not the retention of the base. Applying the base average to promotional members overstates their value, and the cohort measurement is the only way to see how each campaign's members actually behaved.
The formula
payback = cost / (monthly gain - monthly running cost)
Put this calculator on your site
Free to embed. Paste this where you want it to appear. It stays up to date automatically because it loads from BDEVY.
Please keep the attribution line. It is the only thing we ask in return.
How to use this calculator
- Up-front cost ($). Enter your own figure; the page starts at $12,000.
- Extra gross profit per month ($). Enter your own figure; the page starts at $1,400.
- Extra running cost per month ($). Enter your own figure; the page starts at $220.
- Period to judge it over. Enter your own figure; the page starts at 36.
The result updates as you type, so you can try a figure, see what it does to payback period, and change it back. Nothing you enter is sent anywhere or saved.
A worked example
These are the figures the calculator opens with. Every number in the results column below is produced by the same calculation the page runs, so you can follow it through before putting your own figures in.
What goes in
| Input | Value |
|---|---|
| Up-front cost | $12,000 |
| Extra gross profit per month | $1,400 |
| Extra running cost per month | $220 |
| Period to judge it over | 36 |
What comes out
| Result | Value |
|---|---|
| Payback period main result | 10.2 |
| Net gain per month | $1,180 |
| Net return over the period | $30,480 |
| Return on investment | 254% |
It pays for itself in 10.2 months and returns $30,480 over 36 months, a 254% return.
How sensitive the answer is
Holding everything else steady and changing only up-front cost, this is what happens to payback period. It is worth knowing which of your inputs the answer actually hinges on, and which barely move it.
| Up-front cost ($) | Payback period |
|---|---|
| $6,000 | 5.1 |
| $9,000 | 7.6 |
| $12,000 example above | 10.2 |
| $18,000 | 15.3 |
| $24,000 | 20.3 |
Every other input is held at the example value while this one changes, which is not how a real job behaves. Treat it as a guide to which number matters most, not as five separate quotes.
What each figure means
- Up-front cost ($)
- A money amount, starting at $12,000.
- Extra gross profit per month ($)
- A money amount, starting at $1,400.
- Extra running cost per month ($)
- A money amount, starting at $220.
- Period to judge it over
- A number, between 0 and 240, starting at 36.
What the results tell you
| Result | What it is |
|---|---|
| Payback period | The headline result. A decimal figure. |
| Net gain per month | A money figure. |
| Net return over the period | A money figure. |
| Return on investment | A percentage. |
Estimating is the easy part
The jobs you never hear about cost more than the ones you mis-measure. BDEVY builds the marketing, systems and automation that bring them in.