CPL (cost per lead): what it is and how to calculate it
Quick facts
- Definition
- Average cost of obtaining one lead (an interested contact) in a given period.
- Formula
- Spend in the period divided by the number of leads generated.
- It is not
- The cost of winning a patient: that requires factoring in conversion.
- Watch out
- A cheap lead can be a poor lead; look at quality.
CPL stands for cost per lead. A lead is a contact who showed interest, for example someone who messaged on WhatsApp, filled out a form, or asked for information after seeing an ad. CPL shows how much the clinic spent, on average, to get each one.
How do you calculate it?
The math is straightforward: spend divided by leads. Hypothetical example: if the clinic spent R$ 600.00 on paid traffic and received 30 contacts, the CPL was R$ 20.00. The period and the definition of a lead must be the same from month to month for the comparison to make sense.
Where does CPL fit in the funnel?
In the sales funnel, CPL measures only the first stage. The chain continues:
| Stage | Metric |
|---|---|
| Reach and click | CTR |
| Contact | CPL |
| Booking and attendance | Booking rate and show-up rate |
| Closing | Conversion rate |
| Financial return | ROI |
A low CPL helps, but what pays the clinic is the cost per patient who actually closes.
How should you interpret it carefully?
- A low CPL with many curious people and few bookings ends up costing a lot.
- A higher CPL coming from a well-explained landing page can bring more qualified patients.
- Comparing procedures requires separating the campaigns, since interest and margin differ.
How does planning help after the lead?
The better the assessment consultation, the greater the chance that the lead becomes a patient. Presenting an illustrative simulation of the plan, in honest language, can help the patient understand what will be done, without promising results.
Frequently asked questions
How do you calculate CPL?
Divide the amount spent on ads in the period by the number of leads received. Hypothetical example: R$ 600.00 and 30 leads give a CPL of R$ 20.00.
Does a low CPL mean a good campaign?
Not necessarily. If leads do not book or show up, the real cost per patient stays high. Look at conversion alongside it.