Interactive Tool

DPC Member Economics Calculator

Estimate CAC (cost to acquire one new member), LTV (estimated member lifetime value), LTV:CAC ratio, CAC payback period, lead-to-member conversion rate, and churn rate using your own practice data.

Inputs

The numbers that drive acquisition, conversion, retention, and member value.

$
How to get it: Add up what you spent this month on ads, website work, campaigns, content, SEO, and other marketing meant to generate leads.
$
How to get it: Estimate the labor or direct admin cost tied to consults, follow-up, scheduling, tours, and onboarding for new members during the period.
$
How to get it: Add any other direct acquisition costs not already included, such as event fees, printed materials, referral incentives, or launch promos tied to getting new members.
How to get it: Count the people who raised a hand during the period, such as calls, contact-form submissions, booked consults, referral inquiries, or similar first-touch interest.
How to get it: Count the number of new paying members whose memberships actually started during the same period you used for spend and leads.
How to get it: Use your active member count at the very beginning of the month or reporting period before any adds or losses happened.
How to get it: Count the members who canceled, expired, or otherwise stopped paying during the same period used everywhere else in the calculator.
$
How to get it: Take total membership revenue for the month and divide it by your average active member count for that month.
%
How to get it: Estimate what percentage of membership revenue is left after direct costs to serve members, not after total overhead or owner pay. If you do not know yet: Use a planning placeholder like 60% if you are newer, 70% if you are established, or 80% if you are mature and operationally stable, then replace it with a real number later.
months
How to get it: Look at your retention history and estimate how long the average member stays, expressed in months. If you do not know yet: Use a cautious placeholder like 18 months if you are newer, 24 months if you are established, or 36 months if you are mature and stable, then update it once you have real retention data.

Results

The key member-economics metrics, with plain-English context.

CAC
Cost to acquire one new member
$0.00
LTV
Estimated member lifetime value
$0.00
LTV:CAC Ratio
Value compared to acquisition cost
0.00 : 1
CAC Payback Period
Months to earn back CAC
0.00 months
Lead-to-Member Conversion Rate
How many leads become members
0.00%
Churn Rate
How many members you lose
0.00%
Enter your numbers to see your member economics.
View formulas

Total Acquisition Cost = Marketing Spend + Sales/Admin Acquisition Cost + Other Acquisition Costs

CAC = Total Acquisition Cost / New Members Added

LTV = Average Monthly Revenue per Member × Gross Margin % × Average Member Lifespan in Months

LTV:CAC Ratio = LTV / CAC

CAC Payback Period = CAC / (Average Monthly Revenue per Member × Gross Margin %)

Lead-to-Member Conversion Rate = New Members Added / Leads × 100

Churn Rate = Members Lost During Period / Starting Active Members × 100

This calculator is for planning and directional insight. The fallback numbers on advanced inputs are simple placeholders, not hard benchmarks.