Free Trial Economics Calculator

Model a 2-week free trial that rolls into a paid monthly membership. Plug in your funnel numbers and instantly see your CPL, CAC, profit, ROAS, LTV, and breakeven time (for the paid months after the trial).

Inputs

Results

Cost per Lead (CPL) $0.00
Number of Free Trials 0
Cost per Free Trial $0.00
Paid Members from Trials 0
CAC (Cost to Acquire a Paid Member) $0.00
Monthly Profit from New Paid Members $0.00
Month-1 ROAS (First Paid Month Profit / Ad Spend) 0.00x
Profit per Member over Paid Lifetime (LTV) $0.00
Total LTV Profit (This Free Trial Cohort) $0.00
Breakeven Time (using paid-month profit only) 0.0 months

Intro Offer Membership Calculator

Model a discounted first month and higher rebill amount, then see your CAC, profit, ROAS, LTV, and breakeven time.

Inputs

Results

Cost per Lead (CPL) $0.00
Members Acquired 0
CAC (Cost to Acquire Member) $0.00
Month 1 Profit (Intro Month) $0.00
Ongoing Monthly Profit (Rebill) $0.00
Month-1 ROAS (Profit / Ad Spend) 0.00x
Average LTV per Member $0.00
Total LTV Profit (Cohort) $0.00
Breakeven Time 0.0 months

Unit Economics & Profit Per Member

See how profitable each member really is once you factor in wash costs, usage, and retention — and how much you can safely spend to acquire them.

Inputs

Results

Revenue per Member / Month $0.00
Variable Cost per Member / Month $0.00
Profit per Member / Month $0.00
Profit Margin 0%
Lifetime Profit per Member (LTV) $0.00
Max CAC (to break even in target months) $0.00

Membership Churn & Growth Forecast

Forecast how your membership base and recurring revenue grow over time by combining new signups, churn, and pricing.

Inputs

Results

Members at End of Period 0
Peak Members Reached 0
Total Members Churned 0
Total Recurring Revenue Collected $0.00
MRR at Final Month $0.00
Net Member Growth (vs starting) 0

Month-by-Month Forecast

Simple model: each month you add new members, then lose a percentage of the total base to churn.

Month Starting Members New Members Churned Members Ending Members MRR (Revenue)

Quick Scenario Comparison

See how small changes in churn and new member volume change your ending member base and MRR.

Base Case (your inputs)
0 members
$0.00 MRR
Cut churn by 2 pts
0
$0.00
+50% new members / month
0
$0.00
Cut churn 2 pts + 50% more new members
0
$0.00

Membership Economics Calculator

Car Wash Membership Offer Comparison

Compare the economics of the classic “Free Wash” model vs Giveaway + Trial, Discounted Month, and High-Value Detail Bonus.

1) Free Wash Model

Classic “Free Wash for a Text Opt-In”, try to sell membership at the tunnel.

2) Giveaway + Trial

Big giveaway to drive leads, then a 2-week or similar trial that rolls into membership.

3) Discounted First Month

$1 / $5 / $10 first month, then rolls into standard membership.

4) Detail Bonus Offer

Pay full price for membership, get a free $250 interior/exterior detail as a joining bonus.
All numbers are estimates. Change CPL and conversion rates to match your real data and see how each offer performs for your location.

Membership ROI Calculator

Uses conservative math to show whether a $1,500/month growth partner fee makes sense. Plug in your real numbers.

Your Inputs

$
Example: 35
Example: 10
Example: 15
$
Default: 1500

Results

Membership LTV
$0
Monthly price × retention
Monthly LTV Created
$0
New members × LTV
Net Value (after fee)
$0
Monthly value − fee
ROI Multiple
0.0x
Monthly value ÷ fee
Break-even line
0 members
needed per month to break even
If we add 0 members per month, this pays for itself. Everything above that is profit.
Quick reality check
New Members / Month Monthly LTV Created
This ignores upsells, detailing, referrals, gift cards, and wash add-ons. It’s intentionally conservative.

Membership ROI Calculator (Profit-Based)

This calculator models ROI based on profit (not revenue), using gross margin and monthly churn. It also includes ad spend and your fee.

Your Inputs

$
Example: 35
%
Example: 70 (use a conservative estimate)
%
Example: 8 (Retention months = 1 ÷ churn rate)
Example: 15
$
Example: 2000 (paid by the owner)
$
Default: 1500

Results (Profit-Based)

Estimated Retention
0 months
Retention months = 1 ÷ monthly churn
Monthly Profit per Member
$0
Price × gross margin
Lifetime Profit per Member (LTV)
$0
Monthly profit × retention
Total Monthly Investment
$0
Fee + ad spend
Blended CAC (Ads Only)
$0
Ad spend ÷ new members
Monthly Profit Value Created
$0
New members × lifetime profit LTV
Net Profit After Costs
$0
Value − (fee + ad spend)
ROI Multiple
0.00x
Value ÷ total investment
Break-even line (profit-based)
0 members
needed per month to break even
Set your numbers to see the break-even line.
Quick reality check
New Members / Month Lifetime Profit Created Net Profit After Costs
This is conservative. It models only membership gross profit (not add-ons, details, upsells, referrals).